Yaqin MC-100B... anyone modded for tape loop? - diyAudio
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Old 7th March 2015, 03:30 PM   #1
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Default Yaqin MC-100B... anyone modded for tape loop?

I was thinking it'd be nice to be able to record stuff without adding an additional preamp or changing wiring around. Is it possible to add a tape output to the MC-100B? Possibly repurpose that front switch to be a tape monitor switch?

Anyone ever done something like this?

Charles
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Old 7th March 2015, 04:16 PM   #2
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Photos and schematic, please. Views of the jack set and front panel are especially important. Is the unit's PSU robust? I ask, as it may be necessary to buffer the recording O/Ps, with something like a ZVN0545A.
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Old 8th March 2015, 08:38 AM   #3
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CC,

This web page provides most of the info. needed. A photo of the back panel will round things out.

Do you want to add an additional pair of jacks for the recording O/Ps or is the plan to repurpose a set of I/P jacks?
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Old 30th March 2015, 03:52 PM   #4
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Why would I need to buffer the output?

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Old 30th March 2015, 06:04 PM   #5
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Old 30th March 2015, 06:37 PM   #6
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Quote:
Originally Posted by ChopperCharles View Post
Why would I need to buffer the output?

Charles.
Many recording devices present a low I/P impedance, especially when powered off. Quite a few tubed phono sections interact very badly with such a load. Remember, the recording O/Ps get connected to the source selection circuitry and they are in parallel with the power circuitry.

I have to look at the schematic again. In the mean time, please answer my previous question about jack usage.
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