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Looking for product info for Sanyo stereo amplifier model PB3000 (from mid 1970s). Thanks

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Posted on Sep 15, 2009

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Posted on Jan 02, 2017

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My friend who owns a Gibson SG, serial number 00152854 asked me what it might be worth. I think it's 70s model. Can anyone tell me the approx year & value?


Peter, punched serial # into Data base,Your guitar was made at the
Nashville Plant, TN, USA
January 15th, 2002
Production Number: 554
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Where can I get a true-test snow blower manual?


Atlas snow blowers were in production in the early to mid 1970s, but are no longer available. Some models, such as the 5 HP single stage and the 3 HP model, were sold by True Value hardware stores under their TRU-TEST brand and not under the Atlas name. The brand was eventually acquired by the Modern Tool and Die Company (MTD). Customer service: 800-800-7310

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I have a crown 602 channel 2 shows signal coming in, but no volume comes out. Yet when its bridge it seems to put out more power than just one chanel. Not sure where to start looking into the #2 channel...


Common problem. Power transistor in channel#2 is weak or out completely.
Bridging converts from 2 channel(stereo) to mono and you are are useing both channels in series to effectivley double your output.

Oct 04, 2010 | Crown XLS 602 2-Channel Amplifier

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Indicator light doesnt work and the meter doesnt work.


If your TX (Transmit) meter does not work at all, it might or might not be a faulty press-to-talk switch, or faulty wiring. More often, it's the final amplifier stage that's defective if you don't have a carrier (signal) when you key the mike. That will require a qualified Tech to make those repairs. I'm basing this on my experience as a Communications Technician since my Navy days and CB Dealer since the mid 1970s. Thanks

Aug 25, 2010 | Cobra 148 GTL 120-Channels Base CB Radio

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I cannot transmitt out, in otheer words, no one hears me.


If your TX (Transmit) meter does not work at all, it might or might not be a faulty press-to-talk switch, or faulty wiring. More often, it's the final amplifier stage that's defective if you don't have a carrier (signal) when you key the mike. That will require a qualified Tech to make those repairs. I'm basing this on my experience as a Communications Technician since my Navy days and CB Dealer since the mid 1970s. Thanks

Aug 19, 2010 | Cobra Radio Communications

1 Answer

My meter doesnt move at all, when i transmit i can ne heard sometimes and sometimes not, u think its the mic ?


If your TX (Transmit) meter does not work at all, it might or might not be a faulty press-to-talk switch, or faulty wiring. More often, it's the final amplifier stage that's defective if you don't have a carrier (signal) when you key the mike. That will require a qualified Tech to make those repairs. I'm basing this on my experience as a Communications Technician since my Navy days and CB Dealer since the mid 1970s. Thanks.

Aug 11, 2010 | Cobra 29 WX NW ST 40-Channels Base CB...

1 Answer

Stock audio wiring diagram


Car Radio Battery Constant 12v+ Wire: Green
Car Radio Accessory Switched 12v+ Wire: Green/Orange
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Blue
Car Stereo Dimmer Wire: Yellow
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: Under the Driver Seat.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Tweeter Speaker Positive Wire (+): Blue
Left Front Tweeter Speaker Negative Wire (-): Brown/Red
Left Front Mid Speaker Positive Wire (+): Black
Left Front Mid Speaker Negative Wire (-): White
Left Front Low Speaker Positive Wire (+): Yellow
Left Front Low Speaker Negative Wire (-): Blue
Right Front Tweeter Speaker Positive Wire (+): Blue/Orange
Right Front Tweeter Speaker Negative Wire (-): Green/Orange
Right Front Mid Speaker Positive Wire (+): Black
Right Front Mid Speaker Negative Wire (-): Brown/Red
Right Front Low Speaker Positive Wire (+): Black
Right Front Low Speaker Negative Wire (-): White
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Blue
Left Rear Speaker Negative Wire (-): Green
Right Rear Speaker Positive Wire (+): Yellow
Right Rear Speaker Negative Wire (-): Blue

pls rate
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May 11, 2010 | 2003 Kia Sorento

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Proper mode settings


Hi bongodboss

The user manual for this amp has good instruction on how to connect it. You can download a copy from here.

Page 9 has info about using the amp for "bi-amping" The amp is only a stereo unit, so to do a 3-way system, you will need at least 1 amp mono in bridge mode for lows, and other stereo amp for mods, and another stereo amp for highs. You could use the internal low pass filter for the bottom end, and a 2 way crossover for the mids and highs. Much simpler doing a 2 way system with composite bins for mids and highs, and subs for lows. You only need the 2 amps and use the low and high pass filters inside the EP2500. If you need anymore help on this, I am happy to talk to you more.

regards
robotek

Jul 10, 2008 | Behringer EUROPOWER EP2500 Amplifier

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