I'm in the preliminary, conceptual design phase of a DHT preamp and eventually a power amp, transformers are always (for me) the hardest part to find at a reasonable cost. I have an old RCA broadcast studio mixer/console, the 76B, yes the Sun Studios Elvis console, but it's in sad shape, restorable but only with lot's of work, but it is loaded with transformers. The one that caught my attention is the XT-2747 which is the output xfmr in the first mic mixer amp which uses a 1620. It's 2570R primary and 120R secondary, and I thought this might make a good output xfmr for a line stage preamp. I'm not decided on what tubes I will be using but have a number of DHTs in stock as well as many other triodes.
I've googled it but there's not much/any info out there.
I'm wondering if anyone out there has experience with this xfmr or any of the others in this console, or even better, specs 😀? The input xfmr looks like it might make a nice MC step up.
Below is the input section.
Cheers
I've googled it but there's not much/any info out there.
I'm wondering if anyone out there has experience with this xfmr or any of the others in this console, or even better, specs 😀? The input xfmr looks like it might make a nice MC step up.
Below is the input section.
Cheers
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