collins: R-392/URR: Tube layout
ID: 220160
This article refers to the model: R-392/URR (Collins Radio Company; Cedar Rapids (IA))
collins: R-392/URR: Tube layout
09.May.10 23:32
4397
From the original instruction book, here the tube layout informations necessary for troubleshooting this receiver:
| V201 | 26A6 | 1st R-F Amplifier RF |
| V202 | 26A6 | 2nd R-F Amplifier RF |
| V203 | 26C6 | 1st Mixer RF |
| V204 | 26C6 | 2nd Mixer RF |
| V401 | 6AJ5 | 1st Crystal Oscillator CRY |
| V402 | 6AJ5 | 2nd Crystal Oscillator CRY |
| V501 | 26A6 | 1st I-F Amplifier I-F |
| V502 | 26A6 | 2nd I-F Amplifier I-F |
| V503 | 26A6 | 3rd I-F Amplifier I-F |
| V504 | 26A6 | 4th I-F Amplifier I-F |
| V505 | 26A6 | 5th I-F Amplifier I-F |
| V506 | 26A6 | 6th I-F Amplifier I-F |
| V601A/B | 12AU7 | I-F Cathode Follower / 1st R-F AGC Rectifier A-F |
| V602A/B | 12AU7 | R-F and I-F AGC Rectifier A-F |
| V603 | 12AU7 | Detector / Noise Limiter A-F |
| V604 | 26A6 | BFO A-F |
| V605 | 6AJ5 | Squelch Control A-F |
| V606 | 6AJ5 | 1st A-F Amplifier A-F |
| V607 | 6AJ5 | Phase Inverter A-F |
| V608 | 26A7GT | 2nd A-F Amplifier A-F |
| V609 | 26A6 | AGC I-F Amplifier A-F |
| V701 | 12AU7 | Multivibrator CAL |
| V702 | 26A6 | 200 kHz Crystal Oscillator CAL |
| V703A/B | 12AU7 | Harmonic Amplifier / Distorter CAL |
| V801 | 26D6 | VFO - Mixer VFO |
I-F: located on IF-Subchassis
A-F: located on A-F Subchassis
VFO: located on VFO - Mixer - Subchassis
CAL: located onCalibrator - Oscillator Subchassis
CRY: located on Crystal Oscillator Subchassis
RF: located on R-F Subchassis
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