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7A18: Difference between revisions
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ebay sighting. Broken bond on ganged gain pots
m (7A18N photos) |
m (ebay sighting. Broken bond on ganged gain pots) |
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===Variable gain pots=== | ===Variable gain pots=== | ||
These pots (R237A,B and R437A,B 315-0241-00) are bonded together - | These pots (R237A,B and R437A,B 315-0241-00) are bonded together - that bond can break which stops the gain push from working. Looking at a few 7A18s, I see that the design was changed at least once. | ||
==Pictures== | ==Pictures== | ||
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Tek 7a17 7a18 7b50a model3 cart.jpg | 7A18 in [[7613]] mainframe | Tek 7a17 7a18 7b50a model3 cart.jpg | 7A18 in [[7613]] mainframe | ||
7A18 and 7A18N from 070-1126-01.png | 7A18 and 7A18N from service manual 070-1126-01 | 7A18 and 7A18N from 070-1126-01.png | 7A18 and 7A18N from service manual 070-1126-01 | ||
Tek 7a18n.jpeg | 7A18N with "Identify" | Tek 7a18n.jpeg | 7A18N with "Identify" seen on an auction site - probably cobbled parts | ||
7A18N front.jpg | 7A18N Front | 7A18N front.jpg | 7A18N Front | ||
7A18N RHS.jpg | 7A18N RHS switch cover removed | 7A18N RHS.jpg | 7A18N RHS switch cover removed | ||
7A18N LHS.jpg | 7A18N LHS switch cover removed | 7A18N LHS.jpg | 7A18N LHS switch cover removed | ||
7A18 R237A and B broken bond.jpg | Broken bond on ganged gain pots | |||
</gallery> | </gallery> | ||
===Development Prototypes=== | ===Development Prototypes=== | ||