Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

belmont (BRC) 585
#1

i'm working on a Belmont 585 tombstone radio, series D.   similar to an Airline 62-198 - http://www.sparkbench.com/sprka198.htm .  it's missing the large wheel or "pulley" that I think should be mounted to the rotating shaft of the variable cap assembly.  …  of course, I may be mistaken that it even had a large "pulley." 
 
PART 2 of my post:  indeed I was mistaken.

in case anyone is curious or simply didn't know, I learned from Bill at sparkbench.com that the large celluloid disc, partially visible in the picture, on the variable cap rotor shaft fits into the slot of the small disc on the tuning knob shaft. no second "pulley," no string.  and in my case, no idea!

anyone know where I might find a replacement disc?  this one is warped and VERY brittle.  thanks.


Attached Files Image(s)
   
#2

according to riders this radio has an IF of 465KC.

https://www.tubesandmore.com/sites/defau..._pg7-1.png

could that be a mistake?? and maybe it should be 456KC? I ask because I'm having trouble aligning it. lots of squeal and motorboating unless I tweak the antenna transformer.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
The abilities of our 'Phorum Pholks" never ceases to amaze me! Fantastic fabrication, Joseph! I'm waiting now for...GarySP — 08:27 PM
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM
Cannot Adjust an IF Transformer’s cores
Joseph, now you are an engineer!!RodB — 06:37 PM
PT-6 antenna connections
Hi, reading your explanation I can see the confusion. If you take it one connection at a time it should result in a desi...RodB — 06:34 PM
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM
40-150 General questions
Good thing you're a good electrician ... the pictures show a lot of rewiring in your future! Take care and BE HEALTHY!...GarySP — 11:52 AM

[-]
Who's Online
There are currently no members online.

>