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Tech Help: Seeburg AY100 - Pulse Transformer Question
Hi Guys,
Just starting my rebuild of the receiver and when I opened the pulse amp box, I noticed a small piece of plastic fall out. It's a piece of the pulse transformer - part # 303457 & component listing of T502. The interior of the transformer looks all right, nothing lose or hanging out. I opened the circuit and measured 9.1 ohms from the output {winding point 4} of the transformer to ground and 0.5 ohm from the input {winding point 2} of the transformer to ground. The first measurement seems fine but not sure about the second measurement. Anyone ever check this before? I understand that jukeboxparts.com might have these. If this part checks out ok, do you think I could just epoxy the piece that feel out or go with a new part? I keep finding these little delays and guess that's to be expected. Thanks for any advice you can give me. Also, I've been using Simple Green and a brush to clean the area where I'm going to be replacing parts. Is this OK? I think I've read others using this without problems. Bob |
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Tech Help: Seeburg AY100 - Pulse Transformer Question
On Wed, 03 Mar 2010 15:34:55 -0800, Corvette Bob wrote:
Hi Guys, Just starting my rebuild of the receiver and when I opened the pulse amp box, I noticed a small piece of plastic fall out. It's a piece of the pulse transformer - part # 303457 & component listing of T502. The interior of the transformer looks all right, nothing lose or hanging out. I opened the circuit and measured 9.1 ohms from the output {winding point 4} of the transformer to ground and 0.5 ohm from the input {winding point 2} of the transformer to ground. The first measurement seems fine but not sure about the second measurement. Anyone ever check this before? I understand that jukeboxparts.com might have these. If this part checks out ok, do you think I could just epoxy the piece that feel out or go with a new part? I keep finding these little delays and guess that's to be expected. Thanks for any advice you can give me. Also, I've been using Simple Green and a brush to clean the area where I'm going to be replacing parts. Is this OK? I think I've read others using this without problems. Bob I would just buy another pulse amp. A fair price would be about $25.00. Simple green is ok to clean the pulse amp. In order for it to cut the Nicotine build up you might have to use it full strength. rinse it out using warm water and put it in front of a fan to dry it out. Once the core in the pulse transformer is cracked it just will non work reliably anymore. Rich in Texas |
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Tech Help: Seeburg AY100 - Pulse Transformer Question
Hi Rich,
Thanks for your reply. I'll start checking out some pulse amps. The transformer is positioned at the lowest level in the box and I just hated to proceed and then have to come back and do it all over again. So I'll change it out and not worry about it. Bob |
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To Rich in Texas or anyone
I am hoping this is the right Rich, if not, please, anyone jump in. I am looking for the 2 selenium diodes for the AVC circuit (CR101 & CR102) for a Seeburg SHFA-1 amp. It was written in your web site the following "The only other thing that I do today is to use a matched set of (Voltage Forward) ECG 115 or 114 selenium diodes." My question, does anyone know where I can find these. As always, thanks to the group for any help, it's always appreciated. |
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To Rich in Texas or anyone
In article ,
"C.G. Learn" wrote: I am hoping this is the right Rich, if not, please, anyone jump in. I am looking for the 2 selenium diodes for the AVC circuit (CR101 & CR102) for a Seeburg SHFA-1 amp. It was written in your web site the following "The only other thing that I do today is to use a matched set of (Voltage Forward) ECG 115 or 114 selenium diodes." My question, does anyone know where I can find these. As always, thanks to the group for any help, it's always appreciated. http://www.sphere.bc.ca/test/ecg.html I'm sure there's other sources. Phillips/ECG was a popular line years ago, though not as much as NTE. if here's an NTE cross # for it, you're golden - NTE distributors are everywhere and seem to be able to get anything from the catalog. |
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