Answering my own question here! I purchased this headphone case from a vendor on Aliexpress. It is advertised as for Koss KPH40 headphones: as...
Wondering if any of you have a good recommendation for a storage case for vintage on-ear Sony headphones? I have a pair of MDR-51s and MDR-50s....
Following up on the levels measurement on my KA1ESA. After giving all the inputs and switches a clean on my receiver, I made a testing cable to...
I haven’t had a chance to test the mV drop on output yet (need to customize a cable first). I had also read that dirty connectors and switches on...
It would be possible to measure for actual voltage drop when the receiver / tape loop is switched on, I would just need to customize a cable to...
Thank you Valentin. So that op-amp is IC395, is that correct, close to the line outs? It's a M5218AFP, and seems to be plentiful available online....
One slight anomaly remaining on the Playback Level settings: when I set the voltages as described above, the VU meter on the deck displays a...
Just posting a belated follow up on the calibration of my KA1ESA (cousin of the K411). Starting over with the Hans Peter Roth Dolby Level tape...
Incredible stuff, bravo!
Just to clarify: the known good recorder is a Deb64 refurbished D6, and the tape a recording made on the D6 with a NOS chrome tape. It displays...
Hey Valentin, so, as you kindly advised, I tried measuring off pin 4 on the Dolby S daughter boards while playing the WLA-PBD1 Dolby cassette. I...
Ok, i see this now. Rather hard to photograph, but the washer behind the erase head is clearly in place. [ATTACH]
No, didn’t touch the erase head, so quite confused about where this washer came from. I did pull out a bag of spare parts I have from an old...
Also, unfortunately I found a small plastic washer (clear, slightly pink color) after I had reassembled the tape mechanism and have no idea where...
Thank you Valentin, I have ordered the HPR test tapes and will try again with those. The 30 pin chips on these boards (marked as Dolby PB on the...
Hey Valentin, I have been following this excellent tutorial in order to tune up a Sony KA1ESA deck, which has a similar mechanism and electronics...
Thank you Valentin!
I just opened up a DD3 that has no power and found what seems like the same issue with part T701. I am wondering: if this is down to some voltage...
Check the turntable to see if it has a built-in preamp - many newer and less expensive turntables these days have them. If it does, that should be...
This previous thread had some suggestions, with the small wires inside Ethernet and USB cables being a choice of a few members on here. I haven’t...
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