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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: why do you HAVE to have a valve rectifier, anyway? posted by Garg0yle on August 29, 2015 at 19:17:18:
But it is an important feature for most valves.
You can simply put a thermistor in the primary / AC mains side of the power transformer and leave it at that. And the heaters will come on first.
Or add another in the B+ / HT secondary on the other side. IIRC that is what we did for the LEAKs.
Or you can use a 555? timer circuit to delay the B+, set to the time your circuit takes to get all its filaments nice and hot.
Or ..... with Eli's suggestion using both VRs and SR diodes.
I simply saw the space where the GZ34/5AR4 socket was and wanted it for a filter cap. ;-) For the best sonic reasons.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- A slow enough turn on can be achieved in lots of other ways - Timbo in Oz 21:17:44 08/29/15 (3)
- RE: A slow enough turn on can be achieved in lots of other ways - Garg0yle 23:22:00 08/29/15 (2)
- Are they SE amps or PP? - Timbo in Oz 00:36:33 08/30/15 (1)
- RE: Are they SE amps or PP? - Garg0yle 17:26:33 09/04/15 (0)
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