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| URL:
http://riceornot.ricecop.com/?auto=60649 |
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| Comments: 16 (Read/Post) Favorites: 0 (View) |
Submitted
on: 02-13-2007
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Description:
This is primarily for kstagger and thirtyseven... but here it is.
I picked this up at a local antique store for 35.00! It has some issues but works pretty well. other pics in comments. |
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| #2 |
2-13-2007 @ 03:08:53 PM |
| Posted By : thirtyseven |
Reply | Edit | Del |
Nice! I love consoles. Did you happen to see any brand names stamped on the turntable, speakers, tuner or amplifier?
BTW, $35 is a steal.
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| #4 |
2-13-2007 @ 04:07:38 PM |
| Posted By : kstagger |
Reply | Edit | Del |
looks like a 6V6 push-pull amplifier - probably good for 10-15Ws... nice little score from back in the days when stereo equipment = furniture!
My dad had a huge Fisher console - solid-stater- with built in record player, tuner, and two 3-way speakers. It was HUGE and you had to lift a coffin-like door to get to the turntable and receiver part.
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| #5 |
2-13-2007 @ 04:09:26 PM |
| Posted By : kstagger |
Reply | Edit | Del |
on another note, my Dynaco Mark 3 amplifiers are finished - 60Ws of tube amplification - sounds like a million on my Altec horn speakers... yowza. I'll put pics up on my website some day soon...
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| #6 |
2-13-2007 @ 04:45:50 PM |
| Posted By : thirtyseven |
Reply | Edit | Del |
#5, 60 watts through horns! Damn, that sounds like enough to blow your walls down.
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| #9 |
2-13-2007 @ 06:17:47 PM |
| Posted By : kstagger |
Reply | Edit | Del |
#7, it's probably a Motorola - and wattage is watts consumed from the outlet - not watts out from the amplifier...
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| #11 |
2-13-2007 @ 10:20:27 PM |
| Posted By : 454Nova |
Reply | Edit | Del |
#10, very cool! Any suggestions you can make for reference materials for rebuilding would be greatly appreciated. This one only plays out of one channel (so i have them both playing out of one for now) and the tuner needs some help. I am very interested in learing how to repair this type of equipment.
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| #12 |
2-14-2007 @ 09:44:35 AM |
| Posted By : kstagger |
Reply | Edit | Del |
get yourself a multimeter - I like cheap-o digital jobs that have at least a 600VDC scale... a 25-35W soldering pencil (not the big trigger solder guns - too powerful), and learn some electrical safety tips so you don't electrocute yourself.
Tracing tube gear is really easy since it's fairly primitive stuff... different tubes provide functions ... for example (they look like) 6V6s are the power/output tubes and provide the heavy work into the output transformers (those are the matching small open frame transformers)
for one channel not working - it could be several things...
and I would try playing with the following -
connection to amplifier
connection to speaker
turn off the units and switch the tubes from one channel to the next (ie the 6V6 power tubes) and the tubes before them... those are the phase splitter/driver tubes. A bad tube could easily lead to no sound.
then we get more tricky stuff - it could be an open cathode bias resistor, bad coupling capacitor, etc etc etc
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| #13 |
2-14-2007 @ 10:00:20 AM |
| Posted By : kstagger |
Reply | Edit | Del |
#12, (cont)
if you want to learn how tubes work - check out this thread on DIY Audio
http://www.diyaudio.com/forums/show...;threadid=38278
it's more theory than practical advice - but you can figure out most basic electronics stuff using Ohms Law: V=IR
that is to say Voltage is equal to the current flowing resistance.
For example if we have a 10 ohm resistor flowing 1A of current, then the Voltage is equal to 10. Then you can start playing with the equation. I=V/R. So with our 10V sitting across a 10 ohm resistor = 1A of current flow.
I learned from reading and lots of playing + some minor electrocution! - don't poke your fingers into tube equipment that is turned on, use the one-hand rule (one hand in your pocket, the other on the multimeter probe, and make sure to discharge power supply capacitors. I haven't gotten shocked for years now since I've learned through habit to be careful.
[Edited by kstagger on 2-14-2007 @ 10:04:29 AM]
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| #14 |
2-14-2007 @ 01:52:14 PM |
| Posted By : 454Nova |
Reply | Edit | Del |
#13, thanks! So far (before your post) the only thing I tried was switching what I found to be the tubes for the 2 channels. After switching them, the same side glows. At least I know both tubes are good. Thanks again for the suggestions and, of course, I'll post any advances i make.
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| #15 |
2-14-2007 @ 02:47:55 PM |
| Posted By : kstagger |
Reply | Edit | Del |
#14, yeah, then definitely check the connections into the amplifier and the speaker connections - those almost look like automotive type connectors ... could be a bad connection... you could try the 'ol wiggle the wires method ;)
btw tubes can still light up and not work well... well usually if they do light up they will at least make some type of sound.
you can buy new tubes, resistors, capacitors, etc at antique electronic supply
http://www.tubesandmore.com/
I use Triode Electronics too (not quite the selection as antique - but they are close to me = fast shipping)
http://www.triodeelectronics.com/
looking at http://img473.imageshack.us/img473/1292/radio03tn0.jpg
the connector on the right side is probably to provide power to the tuner... input would be the wires on the right side?!?!
It's always difficult to troubleshoot something without actually seeing it close up and taking measurements - but if you need anymore pointers, shoot me an email.
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| #16 |
2-14-2007 @ 02:58:46 PM |
| Posted By : 454Nova |
Reply | Edit | Del |
#15, well... all of my investigation was over this last weekend. In the image you mentioned, the connections in the foreground are for the speakers. I switched the two channels there to check the wiring and they were both fine. the other 'auto' type plugs on the right side of the image are for the front power light. those two wires in the bacground (yellow and purple) on the right side are the signal wires from the tuner. the big bundle of wires in the very back carries the power and what-not
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