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Vintage dave (talk | contribs) (53A no T-coils but 20MHz anyway -- or so Factory Cal says) |
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Short Form catalog, and its Type 53A ancestor was in the August 1954 | Short Form catalog, and its Type 53A ancestor was in the August 1954 | ||
catalog which introduced the first 500-series scopes, the [[531]] and the [[535]]. | catalog which introduced the first 500-series scopes, the [[531]] and the [[535]]. | ||
Type 53A has only three tubes, no [[T-coil peaking|T-coils]], and a bandwidth of 10 MHz in the 530 mainframes. | Type 53A has only three tubes, no [[T-coil peaking|T-coils]] or cross-bootstrap, and a bandwidth of 10 MHz in the 530 mainframes. | ||
Catalogs don't list 53A performance in the 540 mainframes, but the Factory Cal Procedure says 20MHz. | Catalogs don't list 53A performance in the 540 mainframes, but the Factory Cal Procedure says 20MHz. | ||