06-11-2016, 05:09 PM
You gotta put the 1lh4 back in JEEZZZZZZ!
Here's a better schematic: http://www.nostalgiaair.org/pagesbymodel...013559.pdf
The one you posted has a shortwave band on it.
Check the off/on sw and clean the AC/Battery sw. After clng plug the cord into the chassis a few times to actuate the switch. Do you have 117vac across pin 2&7 on the 117Z6? Is the heater lit?? Measure the resistance across pins 2&7 on the tube with the tube unplugged. Should have a low resistance if open tube is bad. If tube is bad you can replace it with a 1N4007. No heat and no warm up time but does raise the filament voltage from 9v to about 10.5( measure from B- to pin 1 of the 1LA5).
I've been a glutton for punishment lately, have been working on a RCA 3BX571 Stratowave( read 1953 5 band rca am/sw portable ac/dc/battery). Audio and If are working but the mixer isn't (read uses 1L6 tube @$40 a pop). Going to try rigging up a 1R5 to see if that 1L6 is the problem.
Terry
Here's a better schematic: http://www.nostalgiaair.org/pagesbymodel...013559.pdf
The one you posted has a shortwave band on it.
Check the off/on sw and clean the AC/Battery sw. After clng plug the cord into the chassis a few times to actuate the switch. Do you have 117vac across pin 2&7 on the 117Z6? Is the heater lit?? Measure the resistance across pins 2&7 on the tube with the tube unplugged. Should have a low resistance if open tube is bad. If tube is bad you can replace it with a 1N4007. No heat and no warm up time but does raise the filament voltage from 9v to about 10.5( measure from B- to pin 1 of the 1LA5).
I've been a glutton for punishment lately, have been working on a RCA 3BX571 Stratowave( read 1953 5 band rca am/sw portable ac/dc/battery). Audio and If are working but the mixer isn't (read uses 1L6 tube @$40 a pop). Going to try rigging up a 1R5 to see if that 1L6 is the problem.
Terry
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