In article .com,
wrote:

I worked for some time trying to replace a defective transformer in one
of these units. Since I could never find a suitable replacement trans.
I attempted to use two transformers to make up the necessary
voltages..Not enough room, I gave up as a hopeless case.. The original
transformer was so small,winding (wire size) was so small,they opened
up after 20/30 years.Usually the 600 v winding goes out.. Good Luck 73
W4PQW

I believe Hammond now makes an appropriate replacement transformer. Yes,
the power transformer is blown on a _lot_ of old Heath scopes. For the
cost of a Hammond, though, you can get a nice Tektronix at a hamfest.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."