Katie Bush wrote:Now there's a set with a vague familiarity about it,
I think the Trader not only redrew all circuits in their own style but adopted their own component references.Till Eulenspiegel wrote:According to the Wireless and Electrical Trader TV service supplement 1218/T85 the boost capacitor is designated as C48, 0.5microfarads. No such circuit reference to the boost capacitor in the 1955/56 Radio and Television servicing book.
Terrykc wrote:I think the Trader not only redrew all circuits in their own style but adopted their own component references.
This can cause problems here when the member who has a problem is using a circuit from a different source to a member who is trying to help!
It is always useful to include a relevant snippet of the circuit in posts to avoid such confusion.
Cathovisor wrote:I know someone who can only work from Trader sheets, finding others 'confusing'
There's a mistake there, surely?Till Eulenspiegel wrote:The attachment shows the circuit diagram of the timebases as taken from the 1955/56 Radio and Television servicing book. Note how the presentation differs from the Trader service information for the same set.
Terrykc wrote:Can you post the relevant section of the Trader sheet for comparison? This is doing my head in!
The mains goes straight to MR2, which supports your theory but the heaters are shown for 220V, surely?Till Eulenspiegel wrote:With regard to the 1955/56 R & T servicing book's circuit diagrams of the T221 it looks as the mains voltage tappings are set for 200 volts.
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