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Ever Ready Serial Numbers Discussion

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Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 12:07 pm

I'm not voting to take this on (yet anyway), I'll think about it. I may design a Public form (hosted on one my web site) that can be filled in and is ignored if nonsense. Those are near 100% spammer proof. Yahoo could close "groups" tomorrow, and the UI is ghastly.

This isn't a useful place (a thread) to do it. But we can discuss here what should be done.
Model C versions
Up to C 56785 (Octal C 1946)
C 56786-C 125136 (C/A 1947 B7G)
C 125137 and up (C/E 1948 B7G + aerial loop socket)
There are two versions of many transistor models.

The haul so far

Mike W
B 15608 Personal / Model B (1947) [Waxies replaced. Plessey Speaker defunct] "Modern transistor speaker fitted, S/N is written in red ink/paint"
K 423568 Model K (1949 - 1953) "Plain type"
Q 801349 Sky Queen (1953)
P 825381 1954 (assuming Sky Prince, partially concurrent with Sky Queen)
SLR 013786 Sky Leader (1958 - 1962) [All original capacitors and transistors, Celestion]
SMR 068499 Sky Master, Late (1964) [All original AF117, capacitors and Transistors, Celestion]
N 659420 N3 (1955) [Waxies all bad & replaced, Celestion] "Definitely an N3, Dx96 valves and X tuning cord layout"
SC 017034 Sky Casket (1955) [Waxies all bad & replaced] "Elliptical Inverted magnet speaker a bit like DAC10"
SM 004612 BEREC Matador(1958) [Waxies/Hunt replaced except one, Celestion] "Same as Sky Baronet, BEREC on SN plate, Uses PCB"

Paul RK
SK 025812 Sky King (1956)
Q 819050 Sky Queen (1953+)
Q 850652 Sky Queen (1953+)
SE 002558 Sky Emperor (1957)
SC 018036 Sky Casket (1958)
SPE 004046 Sky Prince, Transistor (1961)
H: 213718 Model H (1949)

John (Stitch)
T 509920 1950 (TA2A), 1951 (TA2B), 1952 (TA2C) approx dates. Partially concurrent with K

Mike T
SPE 005891 Sky Prince, Transistor (1961)

Vicky (hues)
2373 Sky Monarch AM/FM (1955) "Is there a prefix such as M, MF, SMF etc?"

We need to decide what information to "capture" and the explanation as to why.

 
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Re: Ever Ready Serial Numbers Discussion

Post by crackle » Tue Jan 08, 2013 1:27 pm

I think the idea of a serve yourself form is good.
The same sort of thing could be done for other makes of radio.
It all helps with the history.

If you are including transistor sets:
My humble Ever Ready Sky Leader has ESD No. 24249 and has "Inspection Date" of 14/3/60 on the label
Mike

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 2:06 pm

No "SLR nnnnnn" label on the Chassis on your Sky Leader? Mine is a paper label beside the audio out transformer.

 
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Re: Ever Ready Serial Numbers Discussion

Post by cobaltblue » Tue Jan 08, 2013 2:16 pm

Hi Michael

I have already given the Serial number of SKY Monarch.

Anyway in answer to the question of letter before the serial number on mine its a V

V 1894

Please see the picture

Cheers

Mike T
Attachments
S no .jpg

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 4:25 pm

I must have missed it!
Intriguing



1935 to 1945 or even 1946 a four digit model number is used. 5001 in 1935 is first. Most but not all are also Lissen Radios (up to 1941 when London Factories destroyed).
The highest known Model in 5nnn series is 5318 believed to be Bakelite Table Model version of Model A. It would be Octal version of Ever Ready 5218 Bakelite (1939) which used Edge connect tubes.


In 1942 the Ever Ready Radio production moved into Block "A" at Park Lane Wolverhampton.


Quick 1.4V Tube history of UK

  • 1938 Sylvania released the Octal 50mA 1.4V valves 1A7G 1N5G 1H5G 1A5G 1C5G & 3Q5. Previous best was 100mA 2V for Lead Acid. The Audio output was 3 versions 50mA Low power audio, 100mA or 50mA + 50mA for series (2.8V) operation. 1A5G 1C5G & 3Q5
  • Philips/Mullard and others released these designs as Edge Connect in early 1939 DK1, DF1, DAC1 and DL2
  • Late 1939 RCA shrunk them to B7G, first Radios produced in 1940 1R5, 1T4, 1S5, 1S4 or 3S4
    During WWII in UK the B7G tubes only used in Covert/Resistance sets.
  • 1940 Osram / Marconi etc in UK produce Octal copies of the RCA/Sylvania Octal X14 Z14 HD14 N14 N15 & N16 ) Mazda releases a Mazda Octal version of the range!
  • 1942 to 1945 Sets using Edge Connect and Mazda Octal ship with mix of valves and eventually all US Octal.
  • 1945 Mullard and other European numbered versions of 1A7G 1N5G 1H5G 3Q5 as DK32 DF33 DAC32 DL33
  • 1945 - 1947 Battery sets using Octal 1.4V can be any mix of US or European numbered valves
  • 1945 - 1950 Presumably due to shortages some makers shipping 120V + 2V Lead Acid 100mA 2V valves with up to four different bases, Edge, 7 pin, International Octal and Mazda Octal for Battery sets!
  • By 1946 there are no stocks of Edge Connect valves. Production may have almost ceased 1942 / 1943. Mullard issue conversion guide for existing sets.
  • 1946 Any UK sets using B7G use RCA or other imported tubes: 1R5, 1T4, 1S5, 1S4 or 3S4
    1947 European sourced (Philips, Mullard others) copies DK91, DF91, DAF91, DL91 and DL92 (1R5, 1T4, 1S5, 1S4 and 3S4)
  • 1949 Sylviania did the 1L6 B7G for Transoceanic as 1R5 couldn't be used. (later 1U5 or DK92 work as replacements for this rare valve, but need wiring changes).
  • 1950 the DL93 and DL94 give nearly x2 audio power on same filament as DL92, The DL94 moves g1 away from beside anode pin and deletes 2nd anode pin so not pin compatible with DL92
  • 1951 the DK92 has different grid layout and extra grid pin. Really an Octode type of Heptode. (DK91 is Hexode type Heptode). Thus not pin compatible with DK91 as an extra +B screen grid pin used (pin5). On 1R5/DK91, pin 1 & 5 are connected internally and go to 0V. Less L.O. Leakage out on RF in and higher SW frequencies.
  • 1952 Philips develop VHF capable DC90, 50mA. VHF Portables in early 1953
  • 1952 Philips develop DM70 VFD type Magic Eye instead of CRT based like EM34. Only 25mA! DM71 is cropped version for B8D socket.
  • 1953 Philips deliver DK96, DF96, DAF96 and DL96. The DK96 is DK92 pin compatible (though not quite as good at SW) and DL96 is only DL92 audio power, half DL94 power but DL94 pin connections.
  • December 1954 Philips demo VHF DF97. Sets using it for VHF in 1955. It brings out the g3 to separate pin. A DF96 will work in DF97 IF socket, but not vice versa. Used wired as Triode instead of DC90 for VHF Oscillator/Mixer in same circuit, but 25mA instead of 50mA. Most German AM/FM MW/LW/VHF sets use DF97 only for VHF mixer/osc and use DF96 for 10.7MHz/460kHz (or nearby) IF. Vidor Vanguard uses entirely DF97s, AM uses a pair of DF97 in "Hexode/Triode" type of circuit Mixer/Osc configuration, the "triode" doubling as VHF Miser/Osc and "Hexode" as FM IF 1st pentode amp



Letters used on Serial Number plates, Some are Model Names.

A 1945/1946. Based on 1939 5124 / Lissen 8514 series Trader sheet 450. Many models. Early 521x are Edge, later USA Octal and A is USA or Mullard Octal numbers.
B 1947 Logically should have been 1946, delayed due to shortages? B2 adds Long wave in 1947 or 1948
C, C/A, C/E 1946 Octal, 1947, 1948 B7G (suggesting shortage of B7G, European copies of 1940 RCA)
D Listed by GEC as using a AD3, but what is it?
E
F
G/A, G/B Listed by GEC as using a AD3, but what is it?
H 1949
I
J 1949 SW only Saucepan. May have been up to 4 versions. Last two in 1954 (SW only and SW + MW)
K 1949 - 1953 same chassis on Sky Queen
L
M
N 1951 Briefcase. N3 is revised tuning mechanism, power switch and Dx96 valves
O
P 1954 Sky Prince
Q 1953 Sky Queen
R
S
T 1950 for Table version of K, three versions, incompatible socket wiring
U
V 1955 Sky Monarch AM/FM
W
X
Y
Z

SC 1955 Sky Casket
SE 1957 Sky Emperor
SK 1956 Sky King
SM 1958 BEREC Matador (= Ever Ready Sky Baronet)

SLR 1958 Sky Leader
SMR 1962 Sky Master
SPE 1961 Sky Prince Transistor

It will be interesting to see what other abbreviations used.

 
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Re: Ever Ready Serial Numbers Discussion

Post by cobaltblue » Tue Jan 08, 2013 4:50 pm

Its just occured to me that the AM only Monarchs may have used an M

Perhaps the V is for VHF?

Cheers

Mike T

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 5:29 pm

cobaltblue wrote:Its just occured to me that the AM only Monarchs may have used an M

Perhaps the V is for VHF?


Sounds feasible.

Apart from T, the intention up to N seems to have been sequential. Given that the US "Personal" Sets were on the market from 1940, it seems reasonable the UK makers would have wanted to make "Personal" sets as soon as possible after the War. So I'm inclined to believe the Model "B" was intended for 1946.

http://www.radiomuseum.org/forum/rca_bp ... cle.html#3

Romac 1946 http://www.radiomuseum.org/r/romac_portable_106.html
Vidor CN353 1947 http://www.radiomuseum.org/r/vidor_353.html
Romac 1948 http://www.radiomuseum.org/r/romac_personal_136s.html
Ever Ready B 1947 or 1948 http://www.radiomuseum.org/r/ever_b.html
Ever Ready B2 1948, 1949 or 1950? http://www.radiomuseum.org/r/ever_b2b.html
Marconi P17B (same as B) 1947 & 1948 versions http://www.radiomuseum.org/r/marconi_ma ... _17_b.html
Marconi Marconiphone P20BX and also K12 P20B 1948 (adds LW) http://www.radiomuseum.org/r/marconi_ma ... _20_b.html
Very primitive 1948? PAM http://www.radiomuseum.org/r/pam2_personal.html
Championette 1949 http://www.radiomuseum.org/r/champion_c ... 12407.html

Battery life on 1940 to 1952 "Personals" was
1 x D Cell about 18 hours
1 x F Cell about 30 hours
2 x D Cell about 40 hours

I'm not sure if the B114 had a D or F, I'm inclined to think F

Oddly there are few Dx96 "personal" sets, which would have double LT life, though no longer HT life, so not as big a space saving (or battery life increase without larger size).

The US continued to make miniature "Personal" valve sets up to about 1956. The R77 isn't that small, but I suppose counts?

 
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Re: Ever Ready Serial Numbers Discussion

Post by Paul_RK » Tue Jan 08, 2013 5:40 pm

Not sure to what extent they were marketed, but a reasonable number of Braun's late valved "personal" portables seem to have found their way here.

Some more Ever Readies to be going on with:

2160101: 5216 (black)
SMR 022028: Sky Master (blue)
SMR 026900: Sky Master (tan)
SMR 050260: Sky Master (red - replacement red trim parts are missing from the service manual, so presumably only blue and tan versions were initially available)
SLR 102793: Sky Leader (tan, printed circuit)
SQN 111223: Sky Queen III
SLD 16479: Malaysian Skyleader.

Paul

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 6:01 pm

Interesting on the late Malaysian one.

Thanks for heads up on Braun. I hadn't spotted them.
I will look out for the Brauns. They seem to have been export sets if these are they?
175 x 120 x 50 mm 0.9 to 1.1kg
http://www.radiomuseum.org/r/braun_exporter.html
http://www.radiomuseum.org/r/braun_exporter_2.html

227 x 165 x 68 mm 1.6kg (Nearly same size as KB MP151/2, 245 x 160 x 85 & 1.75kg)
http://www.radiomuseum.org/r/braun_100b54_100_b_54.html

 
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Re: Ever Ready Serial Numbers Discussion

Post by Paul_RK » Tue Jan 08, 2013 6:18 pm

Yes, they're the Braun sets I was thinking of. They are very compact: I've the maroon version in the first link hiding somewhere.

I was surprised to see a serial number resembling the "real" Ever Ready ones on the Malaysian set, probably because I'm more used to those on Roberts' imports, often with seven to nine digits and signifying nothing much at all to anyone not in the know.

One more easy to reach set I just remembered -
BD 007237: Berec Demon (Non-PCB and Demon-style cabinet, i.e. it doesn't look like a Sky Leader as some do).

 
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Re: Ever Ready Serial Numbers Discussion

Post by Stitch » Tue Jan 08, 2013 9:20 pm

If its relevant my Model T is the early TA2A version.

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Tue Jan 08, 2013 10:42 pm

Yes the flavour of a model is useful to know. I think only for C we now what serial number ranges apply to versions?

 

Re: Ever Ready Serial Numbers Discussion

Post by hues » Wed Jan 09, 2013 12:01 am

Hi Michael

Prefix on ours is also a V.

Vicky

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Wed Jan 09, 2013 7:11 pm

On ebay
An Ever Ready "Car Portable" (predecessor to Sky Tourer)
Prefix is SCP
SCP026226

Celestion speaker and not unlike a Sky Leader. First time I saw inside one recently (I do think I saw one in 1970 ish). Laskeys sold them later as if Laskeys!

 
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Re: Ever Ready Serial Numbers Discussion

Post by Kalee20 » Thu Jan 10, 2013 1:46 pm

Here are my submissions:

Sky Monarch AM/FM - no. V 1879

Model K (large loudspeaker grille) - no. K 432473

Sky Emperor AM/FM - no. SE 002962

I have attached photos in case there is any doubt, or inconsistency amongst us, about prefixes.

Outstanding - I also have a Model 5033 (pre-war, triode output, table-top mains radio)
Attachments
SkyMonarch.jpg
Sky Monarch
Model K.jpg
Model K
SkyEmperor.jpg
Sky Emperor

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Thu Jan 10, 2013 2:11 pm

Excellent Kalee20,
The 5033 * looks lovely a lovely pre-war set in electronics and case. I haven't decided what to do about my 5017. Sadly ALL labels torn off my presumable Lissen 8515 (Most similar is ER 5215). There are wide variety of Lissen / Ever Ready Alldry Portables in that range 85xx/52xx 1939 to 1945 with a lack of information.



[* The 5033 is clever variation of Lissen 8319 Usually the layout (knobs, scale, speaker position) is the same between Lissen and Ever Ready with just cosmetic difference, or on some Radiograms, almost no difference.]

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Thu Jan 10, 2013 2:18 pm

K 423568 Model K (1949 - 1953) "Plain type" (no bezel and smaller grill) DK91, DF91, DAF91, DL92 452kHZ stamped on IFTs. Painted wood, no cloth.


K 432473 Model K (large Speaker type).

Kalee20 can you confirm valves and IFT?
Is case cloth covered?
Is speaker grill bezel metal or plastic?

 
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Re: Ever Ready Serial Numbers Discussion

Post by Kalee20 » Thu Jan 10, 2013 6:24 pm

Yes- my Model K is large loudspeaker grille (metal grille, metal surround).

Valves are DK91-DF91-DAF91-DL92. IFT's are round - dunno what the IF should be because I attempted to realign it to the Trader sheet, found I ran out of adjustment, presumed I had a coil or capacitor drifted in value, and 'for the moment' set it to seomewhere around 460kHz. What it was originally then, I have no idea. No label on the IFT's.

Cloth covered? - No, textured paint - very nice but woodworm had a field day so after some work it's painted in a rather classy but non-original Lambourghini Rosso Micaceo.

 
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Re: Ever Ready Serial Numbers Discussion

Post by Paul_RK » Thu Jan 10, 2013 9:46 pm

Kalee20 wrote:
Cloth covered? - No, textured paint ...


Yes, my 5216 (and Model A) are in the two-tone broken paint finish Ever Ready and a few other manufacturers took to in the late '30s and 1940s. From the Radiomuseum photos it's general to the 5214/5/6 series, rather than any type of leatherette being used as stated at http://www.radiomuseum.org/r/ever_all_d ... table.html .

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Thu Jan 10, 2013 10:06 pm

I'd agree my Lissen http://www.radiomuseum.org/r/lissen_all ... _8515.html isn't Leatherette in the sense the 1950 models have.

But it's more complicated than paint. It's a textured surface coating of some nature.

Lissen_851x_coat.jpg

(middle clicky me to bigger it)

You can see mine had handle replacement from a small suitcase!

I put a more authentic one from a 1950s schools speaker cabinet someone butchered. Visible on RMorg

This advert shows an as yet unidentified "All dry portable" of the 521x family. See scale window shape?
http://www.radiomuseum.org/forum/ever_r ... ies.html#4

Any ideas?

Also any confirmation what my Lissen is would be good. It's likely a Lissen 8515, but could I suppose be some other 851x as it's the only photo I know.

 
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Re: Ever Ready Serial Numbers Discussion

Post by Paul_RK » Thu Jan 10, 2013 11:27 pm

Interesting to see that "Pakawa" handle - the only other one of that make I've come across is on a Pye 25C I've had for quite a while. I'm fairly sure it's original there, the set appears to have had a short and gentle working life.

As far as I can tell the paint finish on the Model A and 5216 is cosmetically very much the same as http://www.resene.co.nz/comn/whtsnew/crackle.htm : I'd certainly settle for that, were it available, if restoring such a radio. The other models I've had that use something similar are two 1948-50ish Invicta valve portables (I think versions of Model 25), an early post-war McMichael, and a couple of metal-cased Philips 2634s from 1930-1.

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Thu Jan 10, 2013 11:33 pm

Were the plywood side panels crackle effect on Model C, or was it just some were, or is just the paint crazed on some?

I wonder does anyone nearer sell that paint? Hammerite for wood :)

 
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Re: Ever Ready Serial Numbers Discussion

Post by Paul_RK » Thu Jan 10, 2013 11:53 pm

I've had a C and a C/A in the dim and distant past, and, yes, I think the same finish was used on those. It's intriguing - I'd guessed the process would be a two-stage one rather than three stages as described there (solid base coat, coat of crackle, coat of required top colour and only then does the crackle coat break up). Looks as though PlastiKote offer a somewhat similar finish from a two-stage process but with a limited range of colours, http://www.plasti-kote.co.uk/Product/pc ... ode---3620 .

 
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Re: Ever Ready Serial Numbers Discussion

Post by Michael Watterson » Fri Jan 11, 2013 3:17 pm

I've got the effect in the past by using incompatible paints :( by accident

SCS033070 Sky Countess. Arrived to day. Unmarked speaker with a Metal U rather than 0 with circular magnet in it. I'd assume as "Sky Princess" is earlier Chassis version of PCB Sky Baronet, that Sky Baby is earlier Chassis version of Sky Countess/BEREC Wizard. The Countess is simply a "lady" version of Baronet. Didn't they know Count/Countess. Baroness is to Baron. What's the Baronet's Wife?

Code: Select all
    /
   /
[]|
   \
    \   
Normal

    /
   /
 U|
   \
    \    
Countess


So what all Information should be gathered?

 

Re: Ever Ready Serial Numbers Discussion

Post by Robert Darwent » Fri Jan 11, 2013 3:45 pm

A few more serial numbers for the list

SE 002953 - Sky Emperor
SE 003444 - Sky Emperor

BCR 001372 - Berec Commander

I also have another Berec Commander with a detached serial number plate. I've put the plate somewhere safe until I got around to reattaching it. Of course, the place is so safe I can't remember where at the moment!

Regards

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