mlucitt
Veteran and General Yakker
A little lead in your pencil is always nice, too!
Big collection being sold
- Thread starter WOPL Sniffer
- Start date
You betcha!
pennysdad
Veteran and General Yakker
- Joined
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- In witness protection.
- Tagline
- I've totally lost the plot....
My pencil used to have a 'rubber' on the end...
... or do you call them 'erasers' in the US?
grapplesaw
Veteran and General Yakker
the middle number is date code year 97 and 29th week the three digits on other side indicate factory info
658 refers to factory Sangamo Components Division, Pickens, SC
228 may be batch number but I am not sure of that
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Thanks, I knew someone here could decipher it.
Got the 700 tore down. Found the chassis was perfect except for the common bend the commercial amps have between the transformer and heat sink. Worked on it for about 30 minutes on the garage bench with wooden blocks and a makeshift wooden lever press and slowly massaged it straight. Looks very good and everything lines up with a aluminum straight edge and 90 deg triangle. Faceplate, and the cover screw holes line up perfect.
The transformer bell was pretty well bent at the top, and I was very hesitant as it's die cast aluminum. But I slowly and methodically worked on it with wooden blocks and hammer. Turned out nice, and no cracks.
Sticker on heat sink says PL "Division of International Jensen". Think it was made 03/82 from the small sticker on the bell.
No signs of heat sink compound on the unit except for under the Zoebel resistors.
The transformer bell was pretty well bent at the top, and I was very hesitant as it's die cast aluminum. But I slowly and methodically worked on it with wooden blocks and hammer. Turned out nice, and no cracks.
Sticker on heat sink says PL "Division of International Jensen". Think it was made 03/82 from the small sticker on the bell.
No signs of heat sink compound on the unit except for under the Zoebel resistors.
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- Joined
- Jan 14, 2011
- Messages
- 75,407
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
A Jensen unit, never saw one of those...
- Joined
- Jan 14, 2011
- Messages
- 75,407
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
Thanks George!!
- Joined
- Jan 14, 2011
- Messages
- 75,407
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
BTW, good job on the endbell, that can be tricky shit..
The faceplate screws are countersunk into the chassis and faceplate, effectively "locking" the front of the unit securely, and allowing rack mounting as the screws are flush.
The attenuators are Alps 50k with detents, they both actually ohm out at 42k on a Fluke and DER EE. Weird. Maybe they're tired.
The attenuators are Alps 50k with detents, they both actually ohm out at 42k on a Fluke and DER EE. Weird. Maybe they're tired.
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mlucitt
Veteran and General Yakker
16% variation, it would be within the 20% tolerance of many pots. Pretty typical.
Yes it did! That intermediate plate is painted. I fine sanded it and filled the etching with repeated painting and sanding. Sadly I never documented that number as I considered it a inventory number.
