ST-120/AVA upgrade

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mark funk

ST-120/AVA upgrade
« on: 6 Jul 2009, 08:59 pm »
Well, here is some thing you don't see any more.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190319646898&ssPageName=ADME:B:SS:US:1123

                                                  :smoke:

avahifi

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Re: ST-120/AVA upgrade
« Reply #1 on: 6 Jul 2009, 09:51 pm »
You certainly don't see many of these, inasmuch as the photo shows some other transistor being used that we did not specify.  That old upgrade used a Hitachi 2SK135 TO-3 case mos-fet power transistor as the series regulator.  This e-bay item is showing some kind of a plastic T0-220 device, what it is who knows.

Regards,

Frank Van Alstine