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In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps
Post Subject: Looking for inspiring ideas for 'universal' loading.Posted by Romy the Cat on: 5/10/2009
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 DHT4ME wrote:
Romy if you feel that you are not loading the tubes enough put a 16ohm power resistor in parallel w the S2. this will cut the load line in half. It should be less wiry and stronger more weighty sound. Obviously you might experiment w values to find the best load. Under loaded transformers can ring so that might also be a consideration.
You I know it. It is not difficult to load the tube harder with “tricks”. In fact Dima invited for me an amassing way to moderate loading with tube diode running on secondary. It is MUCH difficult to use the “tricks” to unload the output tube… Anyhow, I tend do not use all of those methods. The in different ways affect sound you never know what come from loading and what comes from the side-effect of the “tricks”. It would be nice to have more or less universal primary, let say for 6K, 7.5K and 9K. I do not like taps and remapping of sections might be a pain in ass. I did propose to Dave Slagle that if he will be able to come up with “no compromise” universal transformer with a few lording options then I will be gratefully to buy it. David was right considering that sine my OPT is not a full range but DSET then it might be accomplishable. I did not stressed the new for it as I at this point do not know where would be a range that I need but it is obvious that 2,5V and 4V tube shell be loaded differently. Since, I have two tube sockets they need to be all time connected and I do not see other options then do taping or use two separate transformers…. Sucks…. I will continue to think about it and let see what David will come up with.

The Cat

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