My gut feeling

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In Reply to: Re: it is 100K ladder posted by DMY on March 3, 2006 at 08:58:55:

is the 801A is the problem. That tube would be happy as a class A2 output tube with a B+ up around 600 volts. I can't see it as a preamp tube especially driving a transformer. But I confess to having never worked with it. I'd suggest a tube more like a 5687 or 12B4. Not as sexy but...A lot of those DHT's have a ton of miller capacitance to drive and a step up transformer will multiply that. I doubt the ability of many sources to handle that.
Try bringing you post over to DIY tube forum. I think you would get better help. If you can post schematics.

Russ

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Follow Ups Full Thread

Topic - increase input signal to pre-amp - DMY 12:16:33 03/02/06 (6)

Both will work but I'd go with - Russ57 13:56:30 03/02/06 (5)

Re: Both will work but I'd go with - DMY 16:11:37 03/02/06 (4)

What value is the volume pot? - Russ57 08:33:10 03/03/06 (3)

Re: it is 100K ladder - DMY 08:58:55 03/03/06 (2)

My gut feeling - Russ57 05:03:04 03/04/06 (1)

Re: My gut feeling - DMY 10:38:22 03/04/06 (0)

Follow Ups

My gut feeling - Russ57 05:03:04 03/04/06 (1)

Re: My gut feeling - DMY 10:38:22 03/04/06 (0)

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