Tektronix TR-210 Signal Transformer

[Feridun93]

Hello everyone, I have a Tektronix TR-210. I bought it second hand and it was tried to be repaired. It is in a very bad condition. I need to rewind the transformer with code T101 because it is not there but I do not have any information about its features. I would be happy if you could help me. Thank you in advance.

[jvthorsley]

Hi
I see there is one of these impedance signature analyzers on sale on EBay in California for $695.00.
It must be old as not listed on the obsolete product manuals Huntron provide on a CD.
Thinking about it I don't think it is part of Huntrons kit.
If you need such a piece of test equipment and this Tektronix proves to be not repairable I'm sure there are cheaper alternatives than the Tek on EBay.
The user manual still available but couldn't find any circuit information.

[CWSmith]

I believe there is a link to a schematic for the Tracker 200 posted on the these forums. The Tracker 200 and the TR210 are the same.
Cheers!

[CWSmith]

Found the schematic link. Maybe it will help with figuring out the transformer voltages.
http://www.huntron.com/privatesales/technical/tracker200-main-pca.pdf

[Feridun93]

Hello CWSmith, I saw the schematic too, but I want to know what kind of transformer it is. As far as I understand, the primary winding of the transformer is something like 10vpk, and I think the output voltages should be the same as the test voltages, but I saw in some forums that the transformer is an audio signal transformer.

[CWSmith]

All of the transformers used in older Trackers were custom built by Huntron so off the shelf parts probably won't work.

[jvthorsley]

Hi Curtis
Did the Tracker 5100 DS use the same transformer on the Analog PCB that Feridun93 is wanting.
I don't know  why I got this Tracker on EBay, complete waist of money.
The Analog PCB (Tracker range generator) was missing. And I see on the diagram on the Huntron DVD it has a transformer (T1) on it.
Only good for spare parts if anyone wants one.

[admin]

Hi Feridun93,

I was digging through some archives and found notes on that transformer.

Primary Winding Pins 1-2 : 100T #28 wire

Secondary Winding Pins 3-4 : 77T #28 wire
Secondary Winding Pins 4-5 : 173T #28 wire
Secondary Winding Pins 5-6 : 126T #28 wire
Secondary Winding Pins 6-7 : 152T #37 wire
Secondary Winding Pins 7-8 : 1232T #37 wire

Each wire terminated to corresponding pin with 3 wrap minimum.
Hope this helps!

James, the transformer in the 5100DS is not the same as the one in the 200. I was able to determine a unique part number of each transformer which would indicate there is some difference in their design.

[CWSmith]

Wow! That is some digging! Nice work, Admin!