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Need help with connecting OPT.
Need help with connecting OPT.
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Old 17th January 2006, 07:35 PM   #1
juoto is offline juoto  Finland
diyAudio Member
Join Date: Jun 2004
Location: Riihimäki
Question Need help with connecting OPT.


First of all, sorry for my bad English.

So I´m building an amp with this schematic

and I have a question about connecting Hammond 1627SE OPT to that amp.

Blue/yellow goes to pin 4, that I know...

But shoul I put Red or Blue wire to pin 3?
I´m building my first amp...

Thanks a lot!
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Old 17th January 2006, 07:51 PM   #2
ivegotmono is offline ivegotmono  United States
diyAudio Member
Join Date: Nov 2005
Location: maryland
From Hammond site: http://www.hammondmfg.com/1627.htm

Schematic & Hook Up Data:
SE Schematic


- RED wire connects to B+
- BLUE/YELLOW wire connects to screen (optional use)
- BLUE wire connects to the tube plate
- The 1642SE & 1638SEA do not include a primary screen tap (as they are designed for triode applications).

Look up tube pin layout for your tube>
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