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MagneQuest S-265-A Wiring diagram

119.231.152.47
Posted on October 21, 2023 at 07:04:37
Moukin
Audiophile

Posts: 3
Joined: October 21, 2023
 I'm a Japanese amp builder and just recently got the S-265-A.
I would like to use this to build a Williamson amplifier, but I don't have any documentation on the wiring.
Does anyone have a wiring diagram?

 

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Perhaps a picture? Here is the hookup for the MQ 565, posted on October 23, 2023 at 07:34:17
Bas Horneman
Audiophile

Posts: 4109
Joined: March 28, 2001
 Primary:

Blue goes to the plate of tube #1
Green goes to the screen of tube #1
Red is B+
Green\white goes to the screen of tube #2
Blue\white goes to the plate of tube #2

Secondary:

Black is ground
Orange is 8 ohms
Yellow is 16 ohms

I think Mike was quite consistent even accross transformer types

 

RE: Perhaps a picture? Here is the hookup for the MQ 565, posted on October 24, 2023 at 05:55:46
Moukin
Audiophile

Posts: 3
Joined: October 21, 2023



As you said, the S-265 primary has pairs of blue, red, and green wires. Secondary colors included blue, yellow-green, and brown in addition to black, yellow, and orange.
I will also refer to other types of transformers.

I can't wait to use this transformer, thank you for your quick response.

 

I would try also to post over on Tube DIY Asylum, posted on October 24, 2023 at 07:48:19
Bas Horneman
Audiophile

Posts: 4109
Joined: March 28, 2001
 I think there a few who have experience with that output transformer.

 

RE: I would try also to post over on Tube DIY Asylum, posted on October 25, 2023 at 03:17:12
Moukin
Audiophile

Posts: 3
Joined: October 21, 2023
 That seems like it. Instead, I found a thread of wiring diagram for the S-240, so I'll use that as a reference.

https://www.audioasylum.com/cgi/vt.mpl?f=magnequest&m=11012

 

Excellent. I knew there was something out there...nt, posted on October 25, 2023 at 04:01:22
Bas Horneman
Audiophile

Posts: 4109
Joined: March 28, 2001
 .

 

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