Best Circuit Diagrams

[Yorkie]

Generally, I've found the maker's to be better than Trader sheets - the ubiquitous DAC90A being a case in point. The Bush service sheet is much better than the trader sheet. Some of the ERT ones are good too - the Pye R33 ERT sheet is good. I haven't really found that any particular makers stand out above others. Some are very sparse on component layouts, leaving us to have to trace components from some known starting place such as a valve-holder pin, smoothing cap etc. I must say that it's far easier these days with manuals on searchable DVDs than fumbling through R&TV books, of which I have quite a collection, but rarely refer to these days. It's surprising what can be found on t'internet too nowadays, often FOC, and broadband makes life so much easier in that regard.