Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics

On Thu, 18 Apr 2013 16:56:15 -0400, Tim Schwartz
wrote:

Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics



Tim,

Is Adcom gone or are they not supplying parts for their older models?
Thanks. Chuck

On 4/19/2013 9:57 AM, chuck wrote:
On Thu, 18 Apr 2013 16:56:15 -0400, Tim Schwartz
wrote:

Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics



Tim,

Is Adcom gone or are they not supplying parts for their older models?
Thanks. Chuck


Chuck,

I did contact the parts vendor Adcom mentions on their website,
Affiliated Electronics in New Jersey. While I have no idea how
extensive their parts inventory is, these units are 20+ years old, and
they don't have them. Its why I was hoping another shop might have one
in their junk heap.

Adcom is still around, or at least they have a web site, but I don't
know any local dealers that carry them.

Regards,
Tim

On Fri, 19 Apr 2013 20:02:47 -0400, Tim Schwartz
wrote:

On 4/19/2013 9:57 AM, chuck wrote:
On Thu, 18 Apr 2013 16:56:15 -0400, Tim Schwartz
wrote:

Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics



Tim,

Is Adcom gone or are they not supplying parts for their older models?
Thanks. Chuck


Chuck,

I did contact the parts vendor Adcom mentions on their website,
Affiliated Electronics in New Jersey. While I have no idea how
extensive their parts inventory is, these units are 20+ years old, and
they don't have them. Its why I was hoping another shop might have one
in their junk heap.

Adcom is still around, or at least they have a web site, but I don't
know any local dealers that carry them.

Regards,
Tim


Thanks Tim. I still rarely get some old Adcom pieces to work on and
it is nice to know that Affiliated is still around.

On 4/22/2013 10:04 AM, chuck wrote:
On Fri, 19 Apr 2013 20:02:47 -0400, Tim Schwartz
wrote:

On 4/19/2013 9:57 AM, chuck wrote:
On Thu, 18 Apr 2013 16:56:15 -0400, Tim Schwartz
wrote:

Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics



Tim,

Is Adcom gone or are they not supplying parts for their older models?
Thanks. Chuck


Chuck,

I did contact the parts vendor Adcom mentions on their website,
Affiliated Electronics in New Jersey. While I have no idea how
extensive their parts inventory is, these units are 20+ years old, and
they don't have them. Its why I was hoping another shop might have one
in their junk heap.

Adcom is still around, or at least they have a web site, but I don't
know any local dealers that carry them.

Regards,
Tim


Thanks Tim. I still rarely get some old Adcom pieces to work on and
it is nice to know that Affiliated is still around.

Hi Guys,
Just wanted to piggyback a question about my GTP 500. It is the FM/AM
preamp.
It's been 10 years since I looked into it, but my GTP 500 has a
problem with the FM, no longer recall the symptoms. I was in electronic
repair I know some products have a common problem. Is there an issue
with the FM that crops up on this item? Such as C12 goes open/short?
Mikek

On Mon, 22 Apr 2013 11:03:02 -0500, amdx wrote:

On 4/22/2013 10:04 AM, chuck wrote:
On Fri, 19 Apr 2013 20:02:47 -0400, Tim Schwartz
wrote:

On 4/19/2013 9:57 AM, chuck wrote:
On Thu, 18 Apr 2013 16:56:15 -0400, Tim Schwartz
wrote:

Hello all,

I've got 2 vintage Adcom repairs here that I need parts for. Anyone
got any parts units around?

One is a GFP-1A preamp that has a mangled input selector switch S4.
The Adcom part number is PE-90386-02. It will NOT interchange with the
record selector switch. Th original was mangled by a really bad attempt
to clean it, and the contacts are bent and broken on one of the 2 wafers.

The other is a GFT-1A. While I've got the service manual, it does not
include the schematic. I've got a GFT-1 schematic, but it is quite
different than the "A" version. This unit has a bad detector
transformer T102. Sorry, no part number, as its not mentioned in the
manual.

Many thanks!,
Tim
Bristol Electronics



Tim,

Is Adcom gone or are they not supplying parts for their older models?
Thanks. Chuck


Chuck,

I did contact the parts vendor Adcom mentions on their website,
Affiliated Electronics in New Jersey. While I have no idea how
extensive their parts inventory is, these units are 20+ years old, and
they don't have them. Its why I was hoping another shop might have one
in their junk heap.

Adcom is still around, or at least they have a web site, but I don't
know any local dealers that carry them.

Regards,
Tim


Thanks Tim. I still rarely get some old Adcom pieces to work on and
it is nice to know that Affiliated is still around.

Hi Guys,
Just wanted to piggyback a question about my GTP 500. It is the FM/AM
preamp.
It's been 10 years since I looked into it, but my GTP 500 has a
problem with the FM, no longer recall the symptoms. I was in electronic
repair I know some products have a common problem. Is there an issue
with the FM that crops up on this item? Such as C12 goes open/short?
Mikek

I don't remember the number but bad trimmer caps were a problem in
these tuners. Chuck

Hi Guys,
Just wanted to piggyback a question about my GTP 500. It is the FM/AM
preamp.
It's been 10 years since I looked into it, but my GTP 500 has a
problem with the FM, no longer recall the symptoms. I was in electronic
repair I know some products have a common problem. Is there an issue
with the FM that crops up on this item? Such as C12 goes open/short?
Mikek


Mikek,

The trimmer caps in the front end of the tuner are a common problem
with these units. Replacing them requires a realignment, as you are
replacing the things that you adjust to align the tuner.

I would also not be surprised to see the memory backup capacitors
failing by now.

Regards,
Tim Schwartz

P.S. You are usually better off starting a new thread with a new
header, as people who know your model will reply when they see it in the
subject line.