Symphonic 1260 & 1747

[Brettzky99]

Made in New Jersey

Late 50's mono and poor man's 3 channel

[Brettzky99]

mono push pull 6L6

[TC Chris]

I like that the mono unit gave a choice of playback compensations--78, flat, RIAA. Odd that they didn't give a choice of "Col" or Columbia--Columbia used a compensation curve that makes them sound lousy on modern, RIAA-only devices.

Somewhere I read that ceramic cartridges had a response characteristic that made them play RIAA back without a need for electronic compensation.

Chris Campbell

[William]

The mono unit is definitely higher end, the cabinet gives it away.

Bill

[TC Chris]

What do they sound like?

Chris Campbell

[Brettzky99]

What do they sound like?

Chris Campbell

I don't like to power them up on the original electrolytics. While going through the mono amp a bad audio transformer was discovered. A donor replacement 6L6GC transformer from a Bogen DB-15 mono block is going in the little symphonic amp. A member here Who likes Motorola's is helping me with the transplant

Haven't gotten to the 3 channel yet which is single ended 6bq5

[TC Chris]

Wow, that's a substantial amp. I had always thought of Symphonic as a cheap, low-end brand.

Chris Campbell

[electra225]

Did Symphonic actually build that amp, or did they farm it out to somebody else? I agree with Chris. I always thought Symphonic was a low-end brand. Nothing low-end about the looks of that amp.

[Brettzky99]

Believe symphonic made it

The rest of drawings are in the downloads section

[William]

Wow is right, those transformers look something Fisher and Mac would use.

Bill