1650PA 60watt Push-Pull Output Transformer 

60 Watts - 6,600ct - 200mA

Suggested tubes 6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88

A bit about the 1608A-1650A Series

  • A new and improved version of Hammonds 1608-1650 Series multiple secondary output transformers
    • re-designed secondaries for easy hook-up of secondary loads).
  • Designed for push-pull tube output circuits.
  • Units are designed to provide ample "headroom" at bass frequencies
  • note the weight of each transformer).
  • All models have a secondary tapped for 4, 8 or 16 ohm outputs.
  • Enclosed (shielded), 4 slot, above chassis Type "X" mounting.
  • Manufactured with plastic coil forms for coil support and insulation.
  • Frequency response 30 Hz. to 30 Khz. at full rated power (+/- 1 db max. - ref. 1 Khz) minimum.
  • Insulated flexible leads 8" min.
  • All units (except the 1650G) include 40% screen taps for Ultra-Linear operation (if desired).
  • Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output.
    • The 1650G does NOT have primary screen taps and will not support "Ultra-Linear" applications.
SKU 1650pa
Brand Hammond
Shipping Weight 4.5600kg
Shipping Width 0.240m
Shipping Height 0.240m
Shipping Length 0.240m
Unit Of Measure ea

Thank you

17 September 2019
This is a little thank you note. I have built a valve amplifier to Williamson's design, modified for ultra-linear working. I used your Hammond transformers and choke. Judging by the results, they must be of superb quality. The amplifier is flat from 20Hz to 200Khz, which is as far as I can measure. It would seem to be flat beyond that, but my oscillator ran out of range at those points. I used the 60 watt output transformer (1650PA), which is twice as big as I really needed, but I wanted one with plenty of iron and copper in it. The results are very similar to what Williamson achieved, and he used the best that was available. The Hammond power transformer (378X) maintains its voltage accurately, even under full load. There is no trace of hum in the amplifier, so your choke (193J) is doing an excellent job

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