Eico 147a Signal Tracer Visual Inspection 1960 Factory Build

A visual inspection of a fleamarket find of a Eico Signal Tracer the 147a, found pin seven on one of the tubes wasn't soldered. Find the manual easily online with the Eico 147a schematic search. Boat anchor manual site.
Electronics kit, right to repair.

[@2tallB]

Nice! I would have been interested to see how it functions after the few tweaks.

[@LifeBloodMarketing]

kzbin.info/www/bejne/ep6ViqGsjbB-pa8 around the mid point I am using it some. on a Veriable resistor clean up.

[@2tallB]

@@LifeBloodMarketingthanks. Interesting, did you do that w the speaker off? Eye only? … and when testing the VR for flaws do you prefer this over using a VTVM, or is it just to mess w a different way? 🤓

[@LifeBloodMarketing]

@@2tallB speaker is on. If there is noise it indicates problems with the part. Scratchy noise, dirty pop.