I have a Westinghouse model H829T4 printed circuit radio. It has tubes 12AU6 Converter, 12AV6 Detector, 50C5 Audio Output and 35W4 Rectifier. On turning it on I had loud hum. I replaced the filters, 40MFD with a 40MFD and 20MFD with 22MFD. That fixed the hum and brought the radio to life. But I didn't get all the stations, only some, loud and clear. When I put my finger on the antenna (wire wound on I think iron core) All stations came in clear. Same if I put clip lead on one of the antenna's terminals. This must have been a short cut design without an IF amp. Anyway I have the schematic and if someone can also get the schematic or are familiar with this radio maybe someone can shed some light on why poor reception.
Phil

:I have a Westinghouse model H829T4 printed circuit radio. It has tubes 12AU6 Converter, 12AV6 Detector, 50C5 Audio Output and 35W4 Rectifier. On turning it on I had loud hum. I replaced the filters, 40MFD with a 40MFD and 20MFD with 22MFD. That fixed the hum and brought the radio to life. But I didn't get all the stations, only some, loud and clear. When I put my finger on the antenna (wire wound on I think iron core) All stations came in clear. Same if I put clip lead on one of the antenna's terminals. This must have been a short cut design without an IF amp. Anyway I have the schematic and if someone can also get the schematic or are familiar with this radio maybe someone can shed some light on why poor reception.
:Phil

::I have a Westinghouse model H829T4 printed circuit radio. It has tubes 12AU6 Converter, 12AV6 Detector, 50C5 Audio Output and 35W4 Rectifier. On turning it on I had loud hum. I replaced the filters, 40MFD with a 40MFD and 20MFD with 22MFD. That fixed the hum and brought the radio to life. But I didn't get all the stations, only some, loud and clear. When I put my finger on the antenna (wire wound on I think iron core) All stations came in clear. Same if I put clip lead on one of the antenna's terminals. This must have been a short cut design without an IF amp. Anyway I have the schematic and if someone can also get the schematic or are familiar with this radio maybe someone can shed some light on why poor reception.
::Phil

Here's the schematic: http://techpreservation.dyndns.org/schematics/63/63_Westinghouse_H-829T4_168.djvu

This set seems to have a loop antenna, L1, wound on a ferite core. Check for continuity through L1 - its winding resistance is listed at 1.3 ohms. Put your ohmeter leads across the tuning cap, C1.

:Here's the schematic: http://techpreservation.dyndns.org/schematics/63/63_Westinghouse_H-829T4_168.djvu
:
:This set seems to have a loop antenna, L1, wound on a ferite core. Check for continuity through L1 - its winding resistance is listed at 1.3 ohms. Put your ohmeter leads across the tuning cap, C1.

Doug,
Putting my ohmeter across C1 on the printed circuit points and measuring L1 resistance I read 1.1 ohms. Also I didn't mention, all the tubes measure good emission.
Phil

Phil, your radio may not be working all that bad. Loop sticks are very directional, and receive stations much better if they are pointed toward the received station. If you have already tried rotating your set in different directions, then what I just said sounds foolish, but I had to say it just to be sure. A long wire connected to the antenna terminal will usually give a stronger signal than a loop stick. That is why it is there.

:Phil, your radio may not be working all that bad. Loop sticks are very directional, and receive stations much better if they are pointed toward the received station. If you have already tried rotating your set in different directions, then what I just said sounds foolish, but I had to say it just to be sure. A long wire connected to the antenna terminal will usually give a stronger signal than a loop stick. That is why it is there.

Phil,

If you have a station close to 1400 KHz, you may tune it in and try adjusting the antenna trimmer slightly for maximum sound output.

Radiodoc

::Phil, your radio may not be working all that bad. Loop sticks are very directional, and receive stations much better if they are pointed toward the received station. If you have already tried rotating your set in different directions, then what I just said sounds foolish, but I had to say it just to be sure. A long wire connected to the antenna terminal will usually give a stronger signal than a loop stick. That is why it is there.
:
:Phil,
:
:If you have a station close to 1400 KHz, you may tune it in and try adjusting the antenna trimmer slightly for maximum sound output.
:
:Radiodoc
:
Thanks everyone. I tuned the antenna trimmer, attached a wire to the antenna terminal, put the back cover on and rotated the radio for weak stations. It plays good considering its age.
Phil