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Quote: Originally Posted by JimMac53 Nope, 1 watt should be fine. You could try a 2.7k and see where that got you. Monitor the HT after you turn it on and see if this gets you in the ball park. Anything within 5% of the voltages stated on the schematic should be fine. Thank you Jim. I'll check into it. Quote: Originally Posted by glowinganode Quote: Originally Posted by Nattyman Jim, You are correct, the 2.2k could be replaced with a...

Hello Symon, I certainly agree that you were lucky with the tubes in the Philips CP110. I don't think I ever saw what I would call a really good picture on one of these sets. The CP90 21" 90 degree version gave a splendid picture that was hard to beat, bright, brilliant colour and focus. It seemed to be devoid of any adjustments but the convergence was 100%. I sold a number of 27" AX Dynatron versions of the CP110 and...

Thanks Al! Cheers, Neil

Quote: Originally Posted by YT2095UK it`s the ECC230 / 6AS7G that I`m after, but for a Non audio use, the anode current is nice an high and the gain is only 2, so it seems that a couple of these in parallel would be great for a voltage regulator or switching purposes. Tektronix were fond of these in the power supplies of their scopes. The maximum anode voltage is not very high though and the gain is low, so more suitable for a fixed voltage...

Quote: Originally Posted by M0FYA Andy Not an identical situation but related, I have experience of PVC-clad house-wiring cable (the usual grey flat twin and earth stuff) reacting with polystyrene foam insulating material. The PVC/Polystyrene problem is very common - it's why the connecting cables supplied with consumer goods are always in polythene bags. When people carefully pack things back in their polystyrene foam packaging to...

For goodness sake, we all know not to earth a live chassis for a miriad of reasons. Surely if for whatever reason you like to earth your live chassis operate your radio via a full isolating transformer and supply your own earth by burying a length of copper or galvanised pipe in the ground, the damper the better. You possibly won't achieve better reception but you will have the chassis SAFELY EARTHED. Also you will be less likely to...

No flak from me Victor, it's exactly what I would suggest, if a little OTT! I suppose a slight caveat is, watch where you bury the earth copper - you don't want to do it near an underground cable, or a farmer's electric fence earth (depending where you live)...

After some discussion, the Moderators feel the previous two posts sum things up rather nicely. We're therefore inducing a short-circuit in order to shut down this thread. Suitable keywords such as "earthing AC/DC" in the forum search facility will show several previous threads in the subject.

I never could get slides into the projector the right way round....

There was once a cartoon in Television with a picture of a TV and something about 625 lines. The caption read "No madam, thats the number of lines not the price" As you said happy days