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WTB: Small qty. TO-3P insulators (US only)

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sonidos

sonidos

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Joined 2007
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Folks, if anyone here in the US has extra TO-3P mica or sil-pad insulators, can you spare 5 pcs? This is about the last thing I need to repair my Adcom amp. Hopefully, someone has extras floating around.

Let me know how much coin to have you part with a few extras in your toolbox.

Thanks!!
 
sonidos

sonidos

Member
Joined 2007
Paid Member
Hi Magura,

infinia is correct. I have the Adcom GFA-535. It uses Sanyo 2SD1047 and 2SB817. I appreciate both of you responding. Per the datasheet, TO-3P. The insulators are last on my list....should have checked them more closely after I removed the originals. I ripped a couple so I I'm a couple short.
 
infinia

infinia

Member
Joined 2005
sonidos said:
Hi Magura,

infinia is correct. I have the Adcom GFA-535. It uses Sanyo 2SD1047 and 2SB817. I appreciate both of you responding. Per the datasheet, TO-3P. The insulators are last on my list....should have checked them more closely after I removed the originals. I ripped a couple so I I'm a couple short.
Click to expand...

Hi I have both 535 and 555 series1 !
What are u using for outputs I assume you repaired/replaced. Perhaps a phone call to some local distributor... if nice they can mail you a few.
 
sonidos

sonidos

Member
Joined 2007
Paid Member
Hi infinia,

I actually designed a new psu board, which kicked all this off. I goofed on the right channel and blew out a couple of transistors. I sourced the same transistors from B & D Enterprises. They have a good collection of Sanyo trannies.

Fortunately, my left channel works and sounds even better. I upped capacitance with Panasonic TS-HAs, put in a pair of rectifiers that have better current capability, removed the wiring to the LED indicators, and replaced many of the resistors in the signal chain with Vishay Dales. Also, the soldering job was horrendous on the boards and I realigned all the pins on the output trannies and cleaned it all up. The left channel sounds like a whole different beast. :)

I found a seller on ebay from Hong Kong, so today I put in my order. It will take about 2 weeks but he was much cheaper than distributors. He's got a high rating of 99.9% so hopefully I don't run into trouble with the sil-pads he sold me.
 
PH104

PH104

Member
Joined 2001
sonidos --

I just saw this thread. Sorry I didn't notice it before. You can buy TO-3P pads, both mica and sil-pads, from Mouser in Mansfield TX. The mica insulators are a dime or so, sil-pads more expensive but you can buy either in onesies.

I can find the parts numbers if your eBay buy doesn't work out.
 
L

lhquam

Member
Joined 2010
TO-3P mica insulators available

Today I received a shipment of TO-3P mica insulators from Hong Kong China purchased thru EBay. Here is the EBay listing: TO-3P Transistor Mica Insulator,Insulation sheet, x 50


TO-3P Transistor Mica Insulator,Insulation sheet, x 50 - eBay (item 260559144568 end time Jan-20-11 20:19:03 PST)

They measure .864" x .715" and have a single hole of .137" diameter. (These measures are accurate to about .002"). Most appear to be about 4 mils thick and they are easily split into 1 mil thick pieces.

I am willing to share some of this supply with those in need. Send your mailing address and I send you some.
 
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