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Amperex 5687 with gold pins, another OGR special

141.239.172.61
Posted on May 16, 2017 at 10:05:42
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
Actually a pair of GE made 5687 tubes. These have mysteriously acquired Amperex branding and gold plated pins. Anybody ever seen Amperex 5687 like that before?

 

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RE: Amperex 5687 with gold pins, another OGR special, posted on May 16, 2017 at 11:16:55
gillougillou
Audiophile

Posts: 28
Location: Normandy
Joined: September 12, 2005
 Gold seems new ?


gillougillou

 

RE: Amperex 5687 with gold pins, another OGR special, posted on May 16, 2017 at 11:53:02
Nunki
Audiophile

Posts: 644
Joined: November 27, 2010
 gold never rusts!

N.


 

old gold, posted on May 16, 2017 at 15:26:47
Tre'
Industry Professional

Posts: 17304
Location: So. Cal.
Joined: February 9, 2002

.
Have Fun and Enjoy the Music
"Still Working the Problem"

 

new gold, posted on May 16, 2017 at 15:27:37
Tre'
Industry Professional

Posts: 17304
Location: So. Cal.
Joined: February 9, 2002

.
Have Fun and Enjoy the Music
"Still Working the Problem"

 

new gold over old pins, posted on May 16, 2017 at 15:30:57
Tre'
Industry Professional

Posts: 17304
Location: So. Cal.
Joined: February 9, 2002

Do you see the "crud" showing through?

He plated old, dirty steel pins.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

 

RE: Amperex 5687 with gold pins, another OGR special, posted on May 21, 2017 at 07:24:37
PeterI
Audiophile

Posts: 1432
Location: Colorado
Joined: October 17, 2006
 The seller does say GE branded Amperex. Printing looks authentic to the era. Of course Sylvania had their Gold tubes, some had gold pins. And while Amperex had many gold-plated pin tubes for hi grade military spec (I've handled/tested dozens), that gold plating does look suspicious.

 

RE: Amperex 5687 with gold pins, another OGR special, posted on May 21, 2017 at 09:19:35
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 Yes, i mentioned that he says GE in one small part of the ad. We all know that Amperex used gold pins on many of it SQ tubes but no one has run across any 5687 Amperex. And really why would they since they marketed a tube that was even better the 7119 which was also made at the same time in the usa as well. My MFA M75 PP 6550 amps uses the 5687 as the driver tube. 'when i bought that amp 25 years ago, i started collecting every 5687 type, tung sol, ge, rca, sylvania, 7044 type, 7119, and 6900. I NEVER ran across an Amperex gp 5687. None of the members here have mentioned seeing one of those as well. I for one am very dubious, i think others are too.

 

RE: Amperex 5687 with gold pins, another OGR special, posted on May 21, 2017 at 10:52:56
PeterI
Audiophile

Posts: 1432
Location: Colorado
Joined: October 17, 2006
 You're right. The really odd tubes are his RCA and Raytheon "gold pin" tubes. Haha.

Make an electro-plating bath 1/4" deep? set tubes in and plate w/ gold-ish plating? Like Radio Shack did with almost every "Lifetime" tube they sold in the 70s?


 

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