Here's a video clip I made of the ADS 2001 amplifier & speaker system I recently repaired. NJOY/BDBD/2023
You posted it twice in the same threads
https://www.diyaudio.com/community/threads/ads-2001-amplifier-system-circa-1972.385537/#post-7381053
https://www.diyaudio.com/community/threads/ads-2001-amplifier-system-circa-1972.385537/#post-7381053
I own one of these and would like to have it gone thru before i power it up Can you help
This is a 2 wire operation, one wire for GROUND and one wire for POSITIVE with FUSE HOLDER. Simply apply power and these turn on immediately, NO remote wire so your TOGGLE SWITCH should go to a RELAY if you intend to use it in a car.
These appear to be quite robust products engineered to last a lifetime. That being said I currently have 3 OPERATING.... but only ONE can run SUSTAINED high volume without shutting down and the other makes small crackling sounds upon startup aka caps getting old. MY SUGGESTION.... Hook up a 12 volt BULB between the + terminal of yer battery and then to the amps POWER lead. IF UPON POWERING IT UP,, the BULB burns BRIGHTLY then ya likely have a SHORT in the system aka transistor. SYSTEM should power up with only a small flash of the bulb which indicates the caps are charging and if the bulb stays UNLIT when POWERED UP...... Ya LIKELY have a OPERATING amplifier. Hook Up speakers and a RCA/radio signal and see what happens. These are BI AMP... common ground. SO... Tweeters on one channel and bass on the other, how the system was designed, to work with seperate speakers, CROSSOVER INSIDE the amps circuitry. So all HIGHS on tweeter output 20 watts and all LOWS around 500hz down to the woofer 60 watts PER CHANNEL. 160 watt monster amp in 1973?... Thats what you have. RARE?... well, they are out there. FIND a good TECH if ya shaky on electronics... OR LEARN as I am. Perry Babin is that guy you can learn from here. GOOD LUCK and yeah...... BRING EM BACK TO LIFE!!!! Mine are playing PERFECT INVISIBLE SOUND here as I type... AUDIOPHILE QUALITY... in a time capsule.... BDBD/2023
These appear to be quite robust products engineered to last a lifetime. That being said I currently have 3 OPERATING.... but only ONE can run SUSTAINED high volume without shutting down and the other makes small crackling sounds upon startup aka caps getting old. MY SUGGESTION.... Hook up a 12 volt BULB between the + terminal of yer battery and then to the amps POWER lead. IF UPON POWERING IT UP,, the BULB burns BRIGHTLY then ya likely have a SHORT in the system aka transistor. SYSTEM should power up with only a small flash of the bulb which indicates the caps are charging and if the bulb stays UNLIT when POWERED UP...... Ya LIKELY have a OPERATING amplifier. Hook Up speakers and a RCA/radio signal and see what happens. These are BI AMP... common ground. SO... Tweeters on one channel and bass on the other, how the system was designed, to work with seperate speakers, CROSSOVER INSIDE the amps circuitry. So all HIGHS on tweeter output 20 watts and all LOWS around 500hz down to the woofer 60 watts PER CHANNEL. 160 watt monster amp in 1973?... Thats what you have. RARE?... well, they are out there. FIND a good TECH if ya shaky on electronics... OR LEARN as I am. Perry Babin is that guy you can learn from here. GOOD LUCK and yeah...... BRING EM BACK TO LIFE!!!! Mine are playing PERFECT INVISIBLE SOUND here as I type... AUDIOPHILE QUALITY... in a time capsule.... BDBD/2023
oh yeah, them RCA's... They are EITHER OR.... Theres L&R inputs, HIGH level is sorta speaker level input and LOW LEVEL input is your typical RCA input voltage aka 500 millivolts. So yes VARIABLE sensitivity inputs DEPENDING on what STEREO you used... REMEMBER... there were NO PRE AMP OUTPUTS on a Car Stereo in 1973 except for those who had electrical knowledge to add one themselves back in them days... These were also sold with a 120 volt POWER SOURCE for in HOME use aka RCA level preamp input voltage levels in the home amplifiers of them times WAS available. You MIGHT have a 120 volt model... I have yet to see one myself BUT on the BOX theres a little square where it is MARKED 12 VOLTS... or 120 volts so I know these were such, made for CAR or HOME use. OK Hope that helps. NJOY/BDBD/2023
I just got the A/D/S/ 2001 SERVICE MANUAL in the mail so I decided to shut down the 2001's and go deep into getting them all working like NEW.... in 2023 maybe. Will see. Wish me Luck! BDBD/2023