Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: FYL on January 14, 2011, 05:43:31 am

Title: Valve universal wiring
Post by: FYL on January 14, 2011, 05:43:31 am

Just stumbled upon this page (http://www.hifitubes.nl/weblog/index.php/rewire-rectifier-sockets-for-tube-substitution/) with a clever socket wiring scheme allowing to use most 5V valves - 5AR4, 5AS4, 5AT4, 5AU4, 5AW4, 5AX4, 5AZ4, 5CG4, 5R4, 5T4, 5U4, 5V3, 5V4, 5W4, 5X4, 5Y3, 5Y4, 5Z4, 5931, 6087, and 6106. Could be useful.

(http://www.hifitubes.nl/weblog/wp-content/rewire-rectifier-sockets.jpg)

Title: Re: Valve universal wiring
Post by: stingray_65 on January 14, 2011, 06:51:45 am

WOW!
So simple!

I've booked marked it and will likely wire all my 5V rectos like that from now on

Thanks!

Ray

Title: Re: Valve universal wiring
Post by: LooseChange on January 14, 2011, 06:55:13 am

Where is the universal B+ lead?

Title: Re: Valve universal wiring
Post by: Geezer on January 14, 2011, 07:01:42 am

Quote from: LooseChange on January 14, 2011, 06:55:13 am

Where is the universal B+ lead?

I would think any of pins 2, 7 or 8 could be used.....IOW, any one of the filament connections.
I would probably use pin 8.

G

Title: Re: Valve universal wiring
Post by: stingray_65 on January 14, 2011, 07:03:27 am

Quote from: LooseChange on January 14, 2011, 06:55:13 am

Where is the universal B+ lead?

Just looked thru TDSL at all those recto tubes,

Pin 8 is the universal B+

Ray
seems the only real different recto tube is the 5Y4

The way I've been wiring for years now is pretty universal  :angel