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Comet Pro Var. 1 (according to Moore)

Comet Pro ; Hammarlund Mfg. Co. (ID = 2076140) Radio
 
Comet Pro ; Hammarlund Mfg. Co. (ID = 2076141) Radio
Comet Pro ; Hammarlund Mfg. Co. (ID = 2068335) Radio Comet Pro ; Hammarlund Mfg. Co. (ID = 2076138) Radio
Comet Pro ; Hammarlund Mfg. Co. (ID = 2076139) Radio
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Comet Pro ; Hammarlund Mfg. Co. (ID = 2068335) Radio
Hammarlund Mfg. Co.: Comet Pro [Radio] ID = 2068335 1400x791
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For model Comet Pro Var. 1 (according to Moore), Hammarlund Mfg. Co. Inc.; New York, NY:
QST August 1933 page 1
 
Country:  United States of America (USA)
Manufacturer / Brand:  Hammarlund Mfg. Co. Inc.; New York, NY
Year: 1932 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 57 58 58 57 58 58 47 80
Main principle Superheterodyne (common); ZF/IF 465 kHz
Wave bands Short Wave (SW only)
Details
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Comet Pro [Var. 1 ] - Hammarlund Mfg. Co. Inc.; New
Material Metal case
Shape Tablemodel, low profile (big size).
Notes

The Hammarlund Comet Pro (Early model, Variation 1 according to Communications Receivers by Moore) covers 1.5 to 21 MHz in four bands in AM and CW (BFO).

In contrast to the prototype, bandsspread dials are viewed through small windows, and there is no power output stage. Optional unit with output stage (valve 245), speaker and power supply was available.

Price in first year of sale 160.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 4 = ca. 1934 and before
Mentioned in Communications Receivers (4th edition page 59)
Literature/Schematics (1) Short Wave Craft February 1933 pages 604-5 and 634


All listed radios etc. from Hammarlund Mfg. Co. Inc.; New York, NY
Here you find 138 models, 83 with images and 56 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


 


Forum contributions about this model
Hammarlund Mfg. Co.: Comet Pro
Threads: 1 | Posts: 2
Hits: 2077     Replies: 1
hammarl-mf: ; CometPro
Robin Roeckers
17.Nov.09
  1

Hello, Everyone!

I have access to photos of the Hammarlund Comet Pro with the number 7031 as a model distinction.  I have attached a couple of photos to hopefully get some idea as to which RMorg model to add them to.

I hope we can find a good home for these

Thank you for any help you can give!

Robin

Attachments

Martin Bösch
17.Nov.09
  2

Hallo Robin, very nice set:
as far as I know (relying on informations from R.S.Moore, Communications Receivers, 4th ed.) it seems to be a variant 2 set:
If You have access to the set, please have a look at the tube layout:
- early Var. 1 sets came with tubes 24A, 27, 35, 35, 24A, 27, 27, 80 and had no shield cans over the plug-in coils, antenne terminals with two screws (A, G)

- Var. 2.: with tubes 57, 58, 58, 58, 57, 58, 247, 80, had metal shield cans over the plug-in coils (I think, we can see these on your pictures), antenna terminal with three screws (A1,A2, G)

- Var. 3: similar tube layout, but 2A5 as AF output tube, BFo knob on front panel

- Var. 4: similar but with additional crystal filter switch and control on frontpanel

- Var. 5: similar, AVC tube 2B7, AVC switch on front panel

Obviously, Hammarlund's engineers seem to have improved the circuitry often without model number change, there have been different tube sets for battery and DC mains operation.

Kind regards Martin

 
Hammarlund Mfg. Co.: Comet Pro
End of forum contributions about this model

  
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