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add 5814 warning
Vintage dave (talk | contribs) (Add description and history) |
Vintage dave (talk | contribs) m (add 5814 warning) |
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then shortened to Type D in 1959 with the introduction of | then shortened to Type D in 1959 with the introduction of | ||
the 5xxA scopes. | the 5xxA scopes. | ||
Some production used a pair of 5814 tubes at the input while others used 12AU7's. | |||
These two tube types have different heater currents, and because the heaters are | |||
series-wired, you cannot switch from one type to the other without circuit modification. | |||
* http://bama.edebris.com/manuals/tek/d/ | * http://bama.edebris.com/manuals/tek/d/ | ||
* http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf | * http://w140.com/tek_fcp/tek_type_d_factory_cal_proc.pdf | ||