Quote:
Originally Posted by Radio Wrangler
I'm not on royalties, .... I could bung you one of my old ones in the post. Wonder how long it'd take?
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Well after that I think you should be on royalties. Thanks for the kind offer of the updated one, but probably the post would be prohibitive.
On the anode resistor topic, a handy place to insert the resistor for octal based audio output valves, say an EL33 is on the socket from pin 3 (the anode) to pin 6 (N/P). And since pin 4, G2 (screen grid) is connected to HT normally, the wires to the output transformer primary connect to pins 4 & 6. Very convenient. The Gotcha here is don't use pin 1 labelled as N/C for anything other than ground, as its connected to the metallisation on valves like the EL33M or metal tubes, so if you use that for the anode resistor tag, HT potential is on the metallisation and its not very smart.