Pioneer TX-5A Tuner - diyAudio
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Old 4th October 2002, 08:25 PM   #1
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Default Pioneer TX-5A Tuner

Can anyone guide me to a schematic for the tuner listed? I'm knocked over by its tunefulness (pardon the unintended pun), and dynamics. It must be an early one, because it tunes from 80Mhz to 108Mhz! If anyone is familiar with this guy, please let me know.
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Old 5th October 2002, 02:37 AM   #2
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Jack,
Sorry I can't help you with a schematic, but I do know what you're talking about wrt the sound. I have a Sherwood 2000 tuner, and the day I bought it, it took me a couple of minutes to realise it was mono, so big and rich was the sound (it was tuned to a classical station). The TV and FM come from different sites at my new home, so I'm waiting for them to finish a new Tx tower which means I can point my big Yagi at the one spot to get both. 'Till then, no FM.

There is a website for tuner buffs, but I lost the URL in a recent crash. If I find it I'll post it. They may be able to help more. A Google search might turn it up.

Do you have a pic of the unit?
Cheers
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Old 6th October 2002, 01:31 AM   #3
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Default Pioneer TX-5A Tuner

Brett,
Thanks for the info. This guy looks like a top of the line guy. It's got eleven tubes and a nuvistor front end. It's got stereo with AFC, and AM narrow, wide, 110V or 220V, with a machined aluminum front plate, and a beautiful vacuum tube tuning eye that narrows as the signal strength increases. The sound is luscious! I haven't tried aligning it yet, but I believe it hasn't been touched in at least thirty years. Dust inside, before I cleaned it, was almost a quarter of an inch thick, and apparently, no tubes had been changed since the dust began accumulating. A matching amp tube was available, but I wasn't looking for an amp, although it looked mint. I don't have a scanner, otherwise, I'd zap you a pic. It's a great looking unit. Looks as good as anything on the market today! Again, thanks for the interest, and if you find the link, please let me know!
Tks,
Jack
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Old 6th October 2002, 02:15 AM   #4
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Default Timing

Jack,

I was looking for something else this morning, when lo' and behold, look what I found.
http://geocities.com/tunerinfo/

If your Pioneer sounds OK, and holds tune, I'd leave it alone, just carefully clean it out with compressed air. My Sherwood had been resto'd before I got it, but the tech said it didn't need much at all.

Cheers
Brett
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