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Post by mulmany on May 7, 2019 20:24:50 GMT -6
Got a great deal on a pair of UTC A-20 transformers. Help me decide what to build with them. Or partially build with them. Maybe I will just wire them to the patch bay.
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Post by EmRR on May 8, 2019 4:59:49 GMT -6
Try them on the patchbay. They’d be fine for SS Pultec in/out. Or a more colorful Hardy 990 preamp.
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Post by mulmany on May 10, 2019 15:31:57 GMT -6
So these turned out to just be TRW marked A-20s. EmRR was there any quality change from UTC to TRW. I have seen the TRW cans with the UTC still stamped into the top. |
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Post by EmRR on May 11, 2019 5:57:14 GMT -6
TRW bought UTC. There are rumors but no facts.
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Post by jamiesego on Oct 30, 2019 22:06:16 GMT -6
What did you end doing with them?
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Post by mulmany on Oct 31, 2019 5:26:24 GMT -6
Nothing yet...
They are sitting with my other projects to complete. Funny enough I was just looking at them yesterday, thinking that I needed to wire them up to the patchbay and play around.
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Post by matt@IAA on Oct 31, 2019 7:43:43 GMT -6
Nothing yet... They are sitting with my other projects to complete. Funny enough I was just looking at them yesterday, thinking that I needed to wire them up to the patchbay and play around. What’s the ratio on those, and what size are they? |
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Post by mulmany on Oct 31, 2019 12:29:16 GMT -6
Nothing yet... They are sitting with my other projects to complete. Funny enough I was just looking at them yesterday, thinking that I needed to wire them up to the patchbay and play around. What’s the ratio on those, and what size are they? These are matching units, so have a couple different configurations. The A20's have more options then the A21 I just picked up. They are 2.5" tall and 2" square, roughly. |
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Post by Bob Olhsson on Oct 31, 2019 12:44:33 GMT -6
REAL Motown direct boxes!
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Post by mulmany on Oct 31, 2019 14:44:31 GMT -6
REAL Motown direct boxes! I have read there is some controversy and miss information out there about what a Motown DI consisted of. It seems that there were actually 2 different boxes being used, one for guitar and another for bass and this has caused confusion. Is this true Bob? |
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Post by Bob Olhsson on Oct 31, 2019 14:57:06 GMT -6
As far as I know, everything was UTC mike transformers reversed. We had a few boxes for placing across amplifier outputs that were used for keyboards but the main thing was the single "amp" with an Altec monitor speaker and a little monitor mixer. The inputs all came up in the patch bay. When I tried an A-20 with Bob Babbitt here in NashVegas, there was that "sound."
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Post by EmRR on Oct 31, 2019 18:04:57 GMT -6
As far as I know, everything was UTC mike transformers reversed. We had a few boxes for placing across amplifier outputs that were used for keyboards but the main thing was the single "amp" with an Altec monitor speaker and a little monitor mixer. The inputs all came up in the patch bay. When I tried an A-20 with Bob Babbitt here in NashVegas, there was that "sound." The A-20's I've seen referenced were on the output of an active DI or DI mixer. An A-20 is not a choice for a passive DI, it's 600:600. That would be an A-10, A-11, A-12, etc. |
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Post by Bob Olhsson on Oct 31, 2019 20:01:09 GMT -6
You're right, A-10!
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