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Re: S20R project
I have never had much luck in restuffing caps, just don't have the skill. Mostly use separate caps under the chassis but sometimes they are hard to fit in place. -- Richard Knoppow Los Angeles WB6KBL
By Richard Knoppow · #29974 ·
S20R project
Having developed a fairly easy method for restuffing my OWN can caps, I prefer them.? Hayseed produces a very workable product, but the terminals aren't always oriented in the same pattern or
By Tom Dailey · #29973 ·
Re: S20R project
It sounds like you have enough stuff to get going. Jim Whartenby asked good questions I should have asked. The can cap can be replaced by individual caps under the chassis but make sure NOT to just
By Richard Knoppow · #29972 ·
Re: S20R project
BruceGood to know your skill set!? Curious to know if the power switch has been bypassed or if it has failed in the ON position which is rare, IMHO.? That penetrating oil trick works well so give it
By Jim Whartenby · #29971 ·
Re: S20R project
Maybe add an inrush limiter, too. KK3HVG
By D. Platt · #29970 ·
Re: S20R project
Most of the tubes in that radio will get warm when the radio is on for more than 10 minutes, and that is a good indication if the filament is good, recapping should be done first, as damage can be
By Scott Petersen · #29969 ·
Re: S20R project
Thanks all for the detailed replies, it is wonderful to hear from S-20R veterans that have "been there and done that". Some more details on my skill background to help tailor your advice.? I am fully
By Bruce KX4AZ · #29968 ·
Re: S20R project
No matter what, definitely replace the main filter caps C28/C29. The S20R uses the speaker coil winding as the filter choke and if C29 shorts, the filter choke may get blasted and go open.? Working
By Jeff AC0C · #29967 ·
Re: S20R project
BruceTell us about yourself.? What is your electronics skill level?? What test equipment is available?? Hand tools, soldering iron, tube tester, test meter and such.? Have you mastered the skill
By Jim Whartenby · #29966 ·
Re: S20R project
You will definitely have to remove the bottom cover. Simple, a few screws. The S20R is a straight forward receiver and not difficult to work on. When restored they are quite good performers and worth
By Richard Knoppow · #29965 ·
Re: Hallicrafters HT-9
I picked up my two HT-9s from the Claremore, OK hamfest this past weekend. They were as advertised and even the second one was in great shape despite a few somewhat reversible modifications. The
By Tom Smith · #29964 ·
Re: S20R project
An update on this, I received the S20R boat anchor last week, and I was encouraged by the above average cosmetic appearance of the cabinet, and the fact that the power cord had previously been
By Bruce KX4AZ · #29963 ·
Re: SX-140 Audio transformer
Thank you very much for that info. I will look into that for sure. I have one coming hopefully later this week. Thanks again,Tony
By Tony Lunsford · #29962 ·
Re: SX-140 Audio transformer
Tony,A few years ago I had a National NC-109 with an open audio transformer.? I didn't have any audio transformers but I did have a 6.3 Volt filament transformer, I did some calculations and found
By Leon Robinson · #29961 ·
Re: SR2000 load cap
Re: SR2000 load cap
Update.? I got a cap installed.? This one is brand new from tubesandmore.com.? it does not fit.? I had to make it fit.? I used a cut off D shaft and a Millen Flex coupler.? I have not tested on
By W7WRX · #29959 ·
Re: SR2000 load cap
Re: SR2000 RF drive level
No it's not the pot. C
By W7WRX · #29957 ·
SX-140 Audio transformer
Hello everyone, I¡¯m in the process of getting a SX-140 back on the air. If anyone has an audio output transformer (T4) that you would like to sell, I would really appreciate it. Thanks. ?Tony N5DIM
By Tony Lunsford · #29956 ·
Re: PS2000 BACK PANEL
I'll take one. TNX wa3gin
By Dave Jordan · #29955 ·