Not Working , But 100% Complete. Sound Projects R-203 Guitar Tube Amplifier. This is A Really Cool & Vintage 1960s Sound Projects R-203 Guitar Tube Amplifier that’s in great cosmetic condition over all for its age. Its in the cosmetic condition as pictured, so be sure to view them all (see pics). I tried to take really good pics, so you can judge for yourself (see pics). This amp appears all original other than what is mentioned above, but does not work. The original speaker appears to be in great shape with no signs of deterioration. When this amp came in, the power cord was cut off, as well as the wires going to the speaker. We threw a power cord and speaker wires on it to see what we had. You can hear that it turns on, but the tubes don’t heat up and you get nothing out of it. It doesn’t appear anything has been tampered with other than the speaker wires and power cord. We didn’t try anything else to get this going and just left it as you see it. Please look at all pics… What you see is exactly what you are getting.
This is a mid 60′s vintage Harmony Tube amp. Cosmetically everything looks okay, but the amp does not work. When it is powered on, the amp just buzzes, but does not register anything plugged into the line inputs. Looks like the power cable was replaced at some point. Please see the schematics and photos of the capacitors/resistors inside.
Power output: 25 watts per channel into 8? (stereo). Frequency response: 25Hz to 25kHz. Total harmonic distortion: 0.8%. Input sensitivity: 4.4mV (MM), 440mV (DIN), 280mV (line). Signal to noise ratio: 80dB (line). Channel separation: 50dB (line).
Vintage 1962 HH Scott Stereomaster 222C Tube Amplifier – SHOWN WORKING READ. They will be pulled using gloves, and will be labeled as to exactly where they were pulled from so they can be placed back in their original locations. About this unit: When the unit first made it into my hands it was missing all knobs and I was unable to get the unit to power on (which turned out to be just because I didn’t know how). I sent the unit off to my technician a retired E. E and had him give the unit a once over. While he was able to get the unit to power on he wasn’t able to get sound out of it. So he ran some tests and got the unit up and running again (his full notes can be read at the bottom of the listing), in total he. Cleaned the selector switch’s using deoxit, allowing the unit to properly play sound again. Tested all electrolytic capacitors with an ESR meter and found that they were all in good working condition. Tested and confirmed all tubes in the unit were working as intended. Ran the unit under a dummy load at 20WPC for 2 hours to ensure the unit wouldn’t blow itself up. In his testing he found signs the unit had previously been worked on, finding many (but not all) of the ceramic tube capacitors had been replaced with “Orange Drop” caps (see final photo of the unit on the listing). The note from my technician, and a printed copy of the owners manual will be provided with the unit. NO original packaging, manuals, or other accessories included. Feel free to message with any questions related to this listing. DM us for more information. Scott model 222C Stereo Laboratory Amplifier s/n 151945 component date codes 1962. All of the knobs are missing. Complaint was that it would not power up at all. I found that the tubes did light up, but that indeed, there was no sound. By trying all of the controls, I found that the tape monitor slide switch was intermittent. Treating that switch with DeOxit fixed it. Other tests and observations: I also applied DeOxit to the selector switches. No treatment of any of the pots, which were quiet and felt smooth. Testing the electrolytic capacitors with an ESR meter found that they are all okay, with ESR numbers far lower than the series resistors. Tested the tubes, which were all okay. The 7178 output tubes have no brand visible, but all 4 appear the same. Three of the 12AX7 input tubes are Telefunken, but the fourth is Sylvania. Removed dust with compressed air and mild cleaning of the chassis with a damp cloth. The amplifier was tested powering speakers and a dummy load at up to 20 W/channel, and about 5W/channel for 2 hours. As received, this amplifier was missing all of its knobs. They were replaced with new black bakelite knobs (Davies Molding p/n 1104). The new knobs do not match the originals, but they are clean and functional. They are easily changed if original style ones can be found. Note that there are some signs that this unit has been worked on before, mainly that most, but not all, of the white ceramic tube capacitors have been replaced with Sprague “Orange Drop” caps. Also the bottom cover is fastened by just 4 screws, 5 others are missing.
This is a very old amp.. Can see in the pics the tubes glowing.. Not sure what its for.. Weights about 22 pounds.. Measures 17 inches long.. Cord has been added on to (pics).. Screws holding the top cover to the bottom.. Couple screws are not original.. But holds it on.. There is no cover on the bottom.. Please check all pics..
Please note there are minor scratches and marks due to age. Please note that it is a used item. Kindly refer to the product description for more details. If you have any questions, please feel free to ask.
