Toshiba SY-504 CD-4 System Disc 4-Channel Demodulator up for sale

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bigbillquad

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Hi. All

Another item on ...JAUCE AUCTION...Toshiba SY-504 CD-4 System Disc 4-Channel Demodulator if anybody`s interested , it`s going for 1000 yen. about $9.10 us. at the moment, about 4 days to go..
BBQ...

( https://www.jauce.com/auction/l686282892 )

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Hi. All

Another item on ...JAUCE AUCTION...Toshiba SY-504 CD-4 System Disc 4-Channel Demodulator if anybody`s interested , it`s going for 1000 yen. about $9.10 us. at the moment, about 4 days to go..
BBQ...

( https://www.jauce.com/auction/l686282892 )

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Speaking of Toshiba.....
Have you ever checked that Toshiba SC-410
QM-unit from a while back? Would love to hear your experience with it.
 
Hi. All

Another item on ...JAUCE AUCTION...Toshiba SY-504 CD-4 System Disc 4-Channel Demodulator if anybody`s interested , it`s going for 1000 yen. about $9.10 us. at the moment, about 4 days to go..
BBQ...
There we go, m'man BBQ found this unit too! It ended up selling for about 252 USD with what appears to have been quite a competition of 24 bids.
 
That's my same question in my post for this auction. I'm young enough to never have heard of either a condenser cartridge, or a ceramic cartridge like we were talking about in the SH-3480 thread for that matter. I've heard that osmium and sapphire were used as cheaper solutions to diamond, but these two types/nomenclature are new to me. " 'Scuse me while I wipe some of this water out from behind my ears."
 
Yes, an electret material pretty much works like a condenser microphone except it doesn't need polarization. Its output varies by being flexed/vibrated and the capacitance varying along with it. When I worked for Telex, the hearing aid division used them in a product where a teacher would wear a transmitter and the hard-of-hearing students would wear the receivers, thus enabling them to amplify the teacher's words. The electret microphones are just small cylinders and can be installed in limited space applications.

A strain gauge changes its resistance when flexed/vibrated and so, if a current flows through it, the change in resistance modulates the current flow. It's kind of a variable resistor without a wiper, as it were.

Doug
 
I wish my SE-405 and SH-400 had master volume controls since recording levels on records aren't exactly consistent.

It really wouldn't be difficult to add that feature and if I were younger, I would probably do it but, with my eyesight and dexterity degradation at my age, I would hesitate.

Doug
 
I wish my SE-405 and SH-400 had master volume controls since recording levels on records aren't exactly consistent.

Doug
Yes, having at least a master volume control on any demodulator or decoder is very handy. Although the volume on my Sansui QS-D1000 is quieter than any other outboard unit I have, even when it's at maximum. So not all volume controls are made equal(!).
 
Yes, having at least a master volume control on any demodulator or decoder is very handy. Although the volume on my Sansui QS-D1000 is quieter than any other outboard unit I have, even when it's at maximum. So not all volume controls are made equal(!).

Yes, done correctly, a volume control should be just like the proverbial piece of wire in there when at maximum.

Doug
 
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