146 "Mayor" Ch= 146

Crosley Radio Corp.; Cincinnati (OH)

Data
Forum
Pictures
Collections

  • Year
  • 1932/1933
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 36238

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superhet with RF-stage; ZF/IF 181.5 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 60 cycles, 110V or 25 cycles, 110V or 25 cycles, 220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 146 "Mayor" Ch= 146 - Crosley Radio Corp.;
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Dimensions (WHD)
  • 16.75 x 17.5 x 9.75 inch / 425 x 445 x 248 mm
  • Notes

  • The Crosley 146 "Mayor" is an AC operated 9 tube BC band receiver.  Has RF gain stage, two stage IF amplifier, active AVC circuit with sensitivity control and push pull audio output stage. BC band tuning range is 550 to 1750kHz. Crosley advertised that the Police Band could be received due to this extended BC Band range.

    Please note that some illustrations of this model show 3 knobs on the front panel, while others show 4 knobs.  Actual radio models also appear to have 3 or 4 knobs on the front panel. Per the Crosley documentation, the knobs are as follows: volume, tuning, selectivity and tone/power switch.  Thus for the 3 knob version, it is unclear where the selectivity control is located.

    From the 1932-33 Crosley News Brochure:  The front panel of this radio marvel is finished in beautiful stump walnut veneer.  The delightfully reeded pillars support the Gothic arch at the top.  Variety of decoration is furnished by an overlay of burl maple above the speaker grill.  The nine tube superheterodyne chassis employs the new 2 1/2-volt heater type tubes.

    In many cases Crosley used the chassis number as the model number, and added a model name to some models to help distinguish versions that used common chassis. The 146 and 146-1 chassis are similar except that the 146 chassis drives a single speaker while the 146-1 chassis drives two speakers. Here are the models that used the 146 and 146-1 chassis versions:

    Model Model Type Chassis Speakers
    146  "Senator" Console 146 Qty(1)
    146  "Mayor" Table Top 146 Qty(1)
    146-1  "Congressman" Table Top 146-1 Qty(2)

    Quote from Dave McClellan: "The Crosley 146 from about 1932 is a 9-tube superhet with a tuned RF amplifier and two IF amplifier stages. It receives only the broadcast band - the figures are 55 - 150 on the scale. The chassis is very complex and features a sophisticated AVC system with sensitivity control, push-pull class B output stage, a tuning meter, choke input filter power supply with mercury vapor rectifier, and both 2.5 and 6.3 volt filament tubes!" We can add that the broadcast band is extended (compared to chassis 124) and received the police band also.

    There are 3 models associated with the 146 and 146-1 chassis that are not identified in the Crosley documentation, identified in this LINK.

  • Price in first year of sale
  • 52.50 $ !
  • External source of data
  • Ernst Erb
  • Literature/Schematics (1)
  • - - Manufacturers Literature (The Crosley Service Bulletin No. 42 Dated Dec. 1, 1932)

 Collections | Museums | Literature

Collections

The model 146 "Mayor" is part of the collections of the following members.

 Forum

Forum contributions about this model: Crosley Radio Corp.;: 146 "Mayor" Ch= 146

Threads: 1 | Posts: 1

Crosley sold different models with the monoband chasssis 124. The year after they sold modesl with the chassis 146 (one loudspeaker for table top models) and with chassis 146-1 for consoles with two loudspeakers. Reading advertisements one might believe that this new chassis would have two bands, croadcast and police. In reality it is also a monoband chassis - which went up to quite a bit higher frequencies than the chassis 124.

That made some owners of models with the chassis 124 to later build in the 146 chassis which seems to be having the same size and knob positions. As an example, see the case of this model, an Announcer cabinet which normally has a 124 chassis - with a 146 chassis.

I asked Dave McClellan who owns also a special model with a chassis 146 to investigate how far it can tune the broadcast band. Here his answer:

I measured the highest frequency the Crosley 146 would receive.  It was
1642kHz on my receiver.  After that, dead quiet, as if the receiver was no
longer oscillating.  The dial setting was 16 + about 4 ticks at this point.
Perhaps the type 57 converter tube could not handle any higher frequencies.
Maybe a different or a new tube could do better (the tube tested good).  Or
perhaps the coils have absorbed moisture.  And none of the mica capacitors
were changed in the restoration.  So unfortunately, it is not possible to
determine the highest frequency the radio can receive, at least with MY
radio.

Thank you, Dave.

 

Ernst Erb, 19.Oct.11

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