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en:51j-4_-_revision

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en:51j-4_-_revision [2024/09/21 20:27] – [Inspection] mben:51j-4_-_revision [2024/09/21 20:29] (aktuell) mb
Zeile 60: Zeile 60:
  
 ==== Tube configuration ==== ==== Tube configuration ====
-V001 and V002 ([[6BA6]], VFO 2-3 MHz); \\  +==== Valve setup ==== 
-V101 ([[6AK5]], RF preamplifier); V102 ([[6BE6]], 1st mixer at 2.5->1.5 MHz); V103 ([[6BE6]], 2nd mixer, band I); V105 ([[6AK5]], 12 MHz oscillator); V106 ([[6BE6]], 3rd mixer at 500 kHz)\\\  +V001 and V002 ([[de:6BA6]], VFO 2-3 MHz ); 
-V301 ([[6BA6]], 1st IF stage 500 kHz); V302 ([[6BA6]], 1st IF stage 500 kHz); V108 ([[6BA6]], 3rd IF stage); V109 ([[6BA6]], 4th IF stage); V110 ([[6BA6]], 2nd IF stage 500 kHz). IF stage); V110a ([[12AX7]], detector); V112b ([[12AX7]], noise limiter); V112a ([[12AX7]], LF preamplifier); V113 ([[6AQ5]], LF power amplifier)\\  +V101 ([[de:6AK5]], RF preamplifier); V102 ([[de:6BE6]], 1st mixer to 2.5 → 1.5 MHz ); V103 ([[de:6BE6]], 2nd mixer, Band I); V105 ([[de:6AK5]], 12 MHz oscillator); V106 ([[de:6BE6]], 3rd mixer to 500 kHz) 
-V110a ([[12AX7]], 1st AGC amplifier); V111a ([[12AU7]], 2nd AGC amplifier; V111b ([[12AU7]], amplifier 500 kHz IF output; V104 ([[6BA6]], crystal calibrator); V114 ([[6BA6]], BFO)\\\  +V301 ([[de:6BA6]], 1st IF amplifier 500 kHz); V302 ([[de:6BA6]], 2nd IF amplifier 500 kHz); V108 ([[de:6BA6]], 3rd IF amplifier); V109 ([[de:6BA6]], 4th IF amplifier); V110a ([[de:12AX7]], detector); V112b ([[de:12AX7]], Noise Limiter); V112a ([[de:12AX7]], AF preamplifier); V113 ([[de:6AQ5]], audio final amplifier) 
-V115 ([[5V4G]], rectifier), V116 ([[0A2]], voltage stabiliser).+V110a ([[de:12AX7]], 1st AGC amplifier); V111a ([[de:12AU7]], 2nd AGC amplifier; V111b ([[de:12AU7]], amplifier 500 kHz IF output; V104 ([[de:6BA6]], calibrator); V114 ([[de:6BA6]], BFO)\\  
 +V115 ([[de:5V4G]], mains rectifier), V116 ([[de:0A2]], voltage stabilizer).
 {{ :images:collins_51j4_1601_h.jpg?direct&300|Collins 51J-4 S/N 1601}} {{ :images:collins_51j4_1601_h.jpg?direct&300|Collins 51J-4 S/N 1601}}
  
en/51j-4_-_revision.1726943273.txt.gz · Zuletzt geändert: 2024/09/21 20:27 von mb