If you still want one of these headset audio transformers, I
have a few available on eBay presently, as item #255149764269, some still in
their original manufacturer’s packaging. In case you missed my earlier response
to Bob, here is the result of some frequency response testing I did:
I have tested this transformer into a suitable load. The
frequency response is flat from 15 Hz to 10 kHz, only down 1.4 dB at 20 kHz;
the upper -3 dB point is at 33 kHz. Consequently, this transformer could easily
be considered Hi-Fi. So, you could use this transformer to provide Galvanic
isolation for your low-impedance headphones from a Hi-Fi amplifier.
I also have available, same place, same era, an inline headphone
audio transformer, C-410 as item #255150991225.
You can trade through eBay, or you can deal with me directly,
say, if you want several.
73 de Brian, VK2GCE
From: [email protected]
[mailto:[email protected]] On Behalf Of Bob Groh
Sent: Monday, 27 September 2021 11:15 PM
To: Craig
Cc: [email protected]
Subject: Re: [ARC5] Headset adapters MC-385-B and MC-385-C
The headset impedance
converters are SOLD. Many thanks to all who responded and helped me find
a good home for them. The things we pickup over the years!!!
73
Bob Groh, WA2CKY
"... whose junk box is
just a little bit more empty...."
On Mon, Sep 27, 2021 at 8:08 AM Craig via ARC5 <[email protected]> wrote: