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Post by paradisecs on Nov 11, 2018 4:22:38 GMT
Are there any guides or books similar to Tony Millers SHP Amp book for the TSAs? I've gotten comfortable with the SHPs thanks to the SHP book, and of course the help here but I'm not sure on the TSA.
Stephen
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Post by Ron Rich on Nov 11, 2018 4:43:27 GMT
Hi Stephen,
None that I know of--that was gonna be a "joint project" for us to write---- along with a couple of others--
Ron Rich
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Post by paradisecs on Nov 11, 2018 6:27:19 GMT
Any tips? I have a TSA10 that works but it is all original and I'd like to update it. I also have a few others that I haven't even tested yet.
Stephen
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Post by Ron Rich on Nov 11, 2018 7:24:39 GMT
Stephen,
Nope-other then the usual, RTFM, follow the schematics--should be OK on that one--
Ron Rich
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Post by robnyc on Nov 11, 2018 7:58:26 GMT
Stephan, as Ron indicates it is pretty much the SOS as the other amps. Here is a brief rundown and pic of a TSA series after re-cap: www.flickr.com/photos/90641375@N06/44909569875/Ron has suggested replacing the stabistors with standard diodes. Within a month of his mentioning this I dug out a an SHP-1 for rebuild and use. During testing one channel would occasionally get much louder when there should be about 12db of compression. Yep, stabistors. Any small signal silicon diodes can be used, two in series for each stabistor they replace. As for the gain controls. I set them to max given that my increasing the AGC drive takes away gain. However, even in regular service, the channels should balance with no more than 1 db difference in the signal as measured at the high side of the Volume control. RobNYC |
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Post by paradisecs on Nov 13, 2018 0:52:49 GMT
Why two in series?
Stephen
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Post by robnyc on Nov 13, 2018 5:47:58 GMT
Stephen, two in-series are used to equal the resistance of the original diodes. I've used three in-series to replace the selenium type, but two will work there as well.
RobNYC
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