Hot 6SN7 Preamp update

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

I posted last May about a custom 6sn7 preamp that was runnnig too hot and had a few cap failures. Here is an update,
So after another failure due to heat(burnt resistors), I took it back to the engineer for a power supply rebuild. Redesigned power supply in a separate box with 5AR4 tube rectification. Preamp box uses 0A2 and 0B2 tube voltage regulators. Runs cool and so far so good.
Thomas

"I've never owned a firearm, but I do have an attack parrot!"

Edits: 08/02/17

This post is made possible by the generous support of people like you and our sponsors:

Amplified Parts

Topic - Hot 6SN7 Preamp update - Cuernavaca 11:47:16 08/02/17 (7)

power supply - Cuernavaca 09:28:00 08/03/17 (1)

Didn't say it was built wrong, just drawn wrong (nt) - Chip647 16:26:01 08/03/17 (0)

The way the heater supply is drawn in the schematic looks very wrong - Chip647 05:13:23 08/03/17 (0)

RE: Hot 6SN7 Preamp update - Triode_Kingdom 12:42:14 08/02/17 (3)

Heater line - FenderLover 18:26:18 08/02/17 (2)

RE: Heater line - Caucasian Blackplate 19:53:11 08/02/17 (0)

RE: Heater line - Triode_Kingdom 19:52:36 08/02/17 (0)

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.