Browning R27 IF Transformer 1655-2

[sharky]

Fingers crossed

I have a Browning Eagle S23/R27 set. The receiver appears to be failing due to the dreaded silver mica disease in the IF cans. While I see you can, very delicately, remove the mica capacitor and add one external to the can, I'd rather replace the can if possible.

Here it goes...does anyone know of a source of these IF transformers? I've searched and searched and except for one possibility, at $35/piece, I've failed in my search.

Any help is greatly appreciated.

And...does anyone know if Mudduck is still around? I found a post he made in this forum many years ago. Looking to pick his brain...or anyone else who can tell me the proper capacitor size if I choose to rebuild the IF can.

[2600]

Barkett has them here: stores.goldeneagleradios.com/if-transformer-455kc-1655-2/

No cheaper alternative exists. The newer parts that would replace it are all sold out everywhere I have looked. That's what we used until they stopped being available.

73

[sharky]

Thank you.

Do you know the capacitor value if mounting external to the can? RJordan mentioned 330 pf a long time ago. I also read 100 pf somewhere online. Hoping to find a definitive answer.

[2600]

The equivalent IF transformer in the Tram D201 was never a K-Tran. The newer type they used with the hollow tuning slugs used a 330pf polystyrene cap. We scored a sack of 390pf parts of the same type years ago. Got in the habit of using them to rebuild the IF trans in the Tram.

If there are any notes in the air-gapped computer at work about that cap, I'll pass it along next time I'm there.

Tricky part with the K-Tran is to take the factory cap out of the circuit without destroying the internal structure.

Good luck and 73

[sharky]

FYI...I rebuilt all IF cans installing a 330pf mica cap external to each can and lucky for me they all work! I really took my time and dropped some epoxy inside around the base to stiffen everything.

[2600]

Way, way cool! Not a task for the faint of heart. Congratulations!

And 73

[sharky]

Now if I can get my VIF freq figured out...if VIF is the correct term.?. My 4.890 to 4.600 MHz is actually 5.310 to 4.920 causing my receive to be from 26.545 to 26.935.   So, if I inject 26.545 into the ANT it's received on Ch1 on the dial.

Took me awhile to understand this math :-)

31.4-4.890=26.510+.455=26.965...but not in my case. 

In my case, 31.4-5.310=26.090+.455=26.545

Any ideas?