RCA model 120

10/18/2013 10:04:50 PMMicro9

The cap bank on a RCA 120 has 4 caps in it...3 4mfd and 1 10 mfd.Are these caps electrolytic??
Also all the other caps a covered witha black tar substance is that nornmal for this radio?
Does anyone have a clear schematic of this model?

TKS!!!

10/19/2013 4:09:12 AMJohnnysan

:The cap bank on a RCA 120 has 4 caps in it...3 4mfd and 1 10 mfd.Are these caps electrolytic??
:Also all the other caps a covered witha black tar substance is that nornmal for this radio?
:Does anyone have a clear schematic of this model?
:
:TKS!!!
:

You can use electrolytics; 4.7uf and 10 will do.

10/19/2013 7:24:13 AMMmakazoo

:The cap bank on a RCA 120 has 4 caps in it...3 4mfd and 1 10 mfd.Are these caps electrolytic??
:Also all the other caps a covered witha black tar substance is that nornmal for this radio?
:Does anyone have a clear schematic of this model?
:
:TKS!!!
:
The black tar is normal and a challenge to work with. You could just mount the new caps below and leave the tar-filled box in place. Mark from Kalamazoo

11/3/2013 5:27:02 PMMicro9

::The cap bank on a RCA 120 has 4 caps in it...3 4mfd and 1 10 mfd.Are these caps electrolytic??
::Also all the other caps a covered witha black tar substance is that nornmal for this radio?
::Does anyone have a clear schematic of this model?
::
::TKS!!!
::
:The black tar is normal and a challenge to work with. You could just mount the new caps below and leave the tar-filled box in place. Mark from Kalamazoo
:

Got the RCA up and running...What a wonderful sounding Radio.The tar was messy but it was worth it..
Thanks for your help!!!!