# Difference between revisions of "Telequipment Type A"

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− | The Telequipment Type A plug-in, also known as the 43A, is a 15 MHz vertical plug-in for the S43 and D43. | + | The Telequipment Type A plug-in, also known as the 43A, is a 15 MHz vertical plug-in for the S43 and D43. |

+ | The Type A is four-stage fully differential DC-coupled all-tube amplifier. | ||

+ | The input impedance is 1 MΩ in parallel with 40 pF. | ||

+ | The Type A drives the CRT deflection plates directly via [[ECC88]] cathode-followers. | ||

* [[Media:Telequipment type a schematics.pdf|Telequipment Type A Plug-in Schematics (PDF)]] | * [[Media:Telequipment type a schematics.pdf|Telequipment Type A Plug-in Schematics (PDF)]] |

## Revision as of 10:27, 5 December 2018

The Telequipment Type A plug-in, also known as the 43A, is a 15 MHz vertical plug-in for the S43 and D43. The Type A is four-stage fully differential DC-coupled all-tube amplifier. The input impedance is 1 MΩ in parallel with 40 pF. The Type A drives the CRT deflection plates directly via ECC88 cathode-followers.