Author Topic: Sunn Tube Amplifier Transformers  (Read 2765 times)

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Offline Ned Carlson

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  • Posts: 3
    • http://www.triodeelectronics.com
Sunn Tube Amplifier Transformers
« on: August 21, 1999, 10:31:00 pm »
I dunno if someone's gonna complain about this being
a commercial posting, but here goes:

We stock power transformers for 60W Sunns,
output transformers for 60W Sunns, and output
transformers for 120 W Sunns (like 2000S).
For details see:
http://www.triodeel.com/dynaco.html#mqoutput
or
http://www.triodeel.com/cgi-bin/miva?Merchant/merchant.mv+

These are exact replacements for amps that
used Dynaco transformers, and are copied from the
original Dynaco factory diagrams. AFAIK, we are
the only distributor stocking these.No, they're not
cheap, but they're the real deal. Note that the
Dynaco output transformers were real hifi units,
the unit cost on winding these things in small lots is not
going to be cheap, no matter what we do, if they're going
to be accurate.

I do not know if these will replace Woodward Schumacher
(you can identify those as there will be a "606"
stamped in the metal on the end bell) transformers
found on some Sunns.

Does anyone know which models used the Schumacher
transformers and/or when Sunn switched from using
Dynaco to using Schumachers?

It'd be interesting to know why the Dynaco transformer
sets were selected in the first place, at the time they
would've been more expensive than Schumachers, Stancors,
et al.

Ned Carlson Triode Electronics
"where da tubes are!"
5633 W Irving Park Rd Chicago, IL, 60634 USA
ph 773-871-7459 fax 773-871-7938
11:00 to 7:00 PM CT (1700-0100 UTC) M-F
http://www.triodeelectronics.com

Offline Pulsar577

  • Jr. Member
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  • Posts: 2
Sunn Tube Amplifier Transformers
« Reply #1 on: August 22, 1999, 08:06:00 pm »

: Does anyone know which models used the Schumacher
: transformers and/or when Sunn switched from using
: Dynaco to using Schumachers?

I can give you one data point, I have a Sonaro that
was made in late '67 or early '68 that uses a Schumacher
marked 28-2340 and 606106.

By the way, if anyone knows of a good replacement power
transformer for this amp please let me know.