150 Series Transmitter
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THE COLLINS 150 SERIES TRANSMITTERS
The 150BW was the first Collins product to ever appear in a Collins QST ad (May 1932) containing a photograph.
During this period, home-brew transmitters constructed on breadboards were common in hamshacks across the country. The fully enclosed, rack-mounted, professionally appearing 150 series with engraved panels was a dramatic contrast with the breadboard and had instant appeal to the ham who could afford one.
The type 150A/B transmitters were built up from the basic 30W exciter.
The 150A was the CW only model and rated at 150 watts through the addition of a 3A power amplifier and 1200B power supply to the basic 30W exciter.
The 150B used the same components as the 150A but added the 30B Modulator. This was a class B modulator rated at 100-200 watts of audio output. It used two 245’s or 250’s driving a push-pull pair of 503’s. Two modulation transformers were available with different impedances for use with single-ended or push-pull class C RF amplifiers.
The 150A was priced at $290.00, while the 150B was $350.00. One set of coils was included in the price.
The 150A and 150B replaced the earlier 150W and 150BW models.
Later models of the 150 used a new RF deck, which was eventually used in the 30FXC in 1936. The last of the 150 series was the C model, which appeared in 1935.
- CCA COLLINS HISTORICAL ARCHIVES
- The Pre War Years
- 150 Series Transmitter
- 2A, 2B AND 2C TUNERS (ATU)
- 30FX Transmitter
- 30FXB Transmitter
- 30FXC Transmitter
- 30FXR Transmitter
- 30J Transmitter
- 30W Transmitter
- 32 A/B Transmitter
- 32F Transmitter
- 32G Transmitter
- 40A/B Transmitter
- 45A Transmitter
- 4A Transmitter
- Bulletin 100
- Bulletin 101
- Bulletin 105
- Bulletin 200
- Bulletin 200A
- The Lost Decade
- The War Years
- Post War Broadcast / Commercial
- The Black Boxes
- The Grey Boxes
- The “S” Word or Solid State