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1961 zenith 16H32 “the barrett”
Saw this set for sale on fäcëböök and I thought it was cool so I decided to get it. After a 4 hour round trip, i got it home and plugged it in and no picture, sound or HV. I checked the fuse and it was cremated so i put and new one in and this time the 3DG4 rectifier starts throwing purple sparks and blew the fuse. I took the chassis out to check the filters for shorts and no shorts were found so I thought it was the rectifier tube shorting when the HV starts so I ordered a NOS 3DG4. The new tube arrives and i put it in the set but this time the HV starts up and i can hear the vertical running, and then a raster! I put the chassis back in to the cabinet and reattached the tuner and was surprised with strong snow and loud sound. I hook up the converter box and there was a nice picture but the horizontal won’t stop rolling. I asked around as to why it’s doing this and someone told me the phase detector diode was causing this so a fellow collector sent me an exact replacement and as the replacement was on its way, i tested all the tubes in the horizontal circuit and all was good except for the 6HS8. The 6HS8 tested very weak so I ordered one and its still on its way. I have decided not to replace the diode until i see what a new 6HS8 will do. I’ll update the horizontal problem when the tube gets here.
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Your good times will bring me down |
#2
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Nice looking set.
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#3
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Your good times will bring me down |
#4
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An update
I have now got the new 6HS8 in and i have replaced the phase detector diode and all but two caps. The horizontal is somewhat stable but not good enough. I replaced the 6GH8 with a NOS one- no difference. Soon i will be replacing rest of the caps and a few resistors in the horizontal circuit and a few resistors on the 6EM7 to hopefully get rid of the annoying lines on top of the picture.
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Your good times will bring me down |
#5
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These sets were so damn good its almost a crime. I loved working on
them but didnt do many cause they didnt break. Best B&W sets ever built IMHO. For the vert there is an electrolytic in the cathode of the V out. Its usually part of a can. Next is the integrators, 3 legged discs that have 87 on them and a color dot. After that caps in vert feedback. Also watch for high value resistors in the V size area. 73 Zeno LFOD ! |
Audiokarma |
#6
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I just got done replacing the bumble bomb and ceramic cap. Now the set shows some more improvement.
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Your good times will bring me down |
#7
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Finally got the horizontal to lock, it was two bad 100k resistors.
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Your good times will bring me down |
#8
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More progress. Got more oot resistors replaced and a 40 mfd replaced
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Your good times will bring me down |
#9
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Nice!
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#10
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Good information to know, thank you.
Knowing this, I'll sure be hanging on to any bumblebee caps I come across from now on. Now all we need is someone to get a rumor started that weak tubes, wax-dipped paper caps, and old out-of-tolerance resistors make a guitar amp sound better....we could all make some $$ in this hobby. |
Audiokarma |
#11
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I’m about one electrolytic away from finishing this set.
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Your good times will bring me down |
#12
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I was able to download the pictures and your set looks similar to one (1961 model H2735) I rescued in a snow bank a few years back. It was free for the taking and I was not about to pass it up. It has the 3-legged starfish knob used on the less expensive models, lit knob-dial not the channel window knob.
I did see a few bumblebees when I took the service saver cover off. They looked to be far enough away from the fly and vertical stage that they were not a concern. So, I powered it up and got a great picture after I brought it in and let it dry out. It sits under my bench waiting for a spot in my display room. These Zenith's exemplified the term "durable goods". A neighbor/friend of mine had one just like yours in a metal cabinet 23" version. It sat in a 2-foot deep windowsill in the stone-house living room and played without much service until it was replaced with a 1970 Chromacolor. He is my age, so I think he has both sets. LADR, I sure hope yours turns out good!
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"When resistors increase in value, they're worthless" -Dave G Last edited by DavGoodlin; 12-10-2018 at 12:12 PM. |
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