Voltage and Phase Angle Measurements on the BR-39 RF Oscillator
| 1939 Beam Ray rf oscillator and audio sections with 8" diameter Phanotron Plasma Tube from Bill Cheb | ||
| 39-01 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. RCA 809 Triode Anode Voltage (Van) @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.45 MHz, Vpt = 704 Vpp, 249 Vrms, Van = 900 Vpp, 318 Vrms, 532 Vdc, Ian = 80 mAdc |
| 39-02 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 809 Triode Anode Voltage (Van) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.47 MHz, Vpt = 688 Vpp, 243 Vrms @ 0 deg, Van = 928 Vpp, 328 Vrms @ -8.7 deg |
| 39-03 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 50 ns/div, 809, No Audio Input, AC Coupled | f r = 3.46 MHz, Vpt = 644 Vpp, 228 Vrms @ 0 deg, Vcoil = 848 Vpp, 300 Vrms @ -2.5 deg |
| 39-04 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 2.2kΩ set Rheostat (V2.2k) @ 50 ns/div, 809, No Audio Input, AC Coupled | f r = 3.61 MHz, Vpt = 656 Vpp, 232 Vrms @ 0 deg, V2.2k = 268 Vpp, 95 Vrms @ 0 deg |
| 39-05 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 809 Triode Grid Voltage (Vgr) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.58 MHz, Vpt = 744 Vpp, 263 Vrms @0 deg, Vgr = 290 Vpp @ +177.4 deg |
| 39-06 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 809 Triode Grid Voltage (Vgr) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.57 MHz, Vpt = 240 Vrms @ 0 deg, Vgr = 105 Vrms @ +180 deg |
| 39-07 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Svetlana 812 Triode Anode Voltage (Van) @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.55 MHz, Vpt = 704 Vpp, 249 Vrms, Van = 1.02 kVpp, 361 Vrms, 571 Vdc, Ian = 82.5 mAdc |
| 39-08 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 812 Triode Anode Voltage (Van) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.53 MHz, Vpt = 756 Vpp, 267 Vrms @ 0 deg, Van = 1.06 kVpp, 375 Vrms @ 0 deg |
| 39-09 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 50 ns/div, 812, No Audio Input, AC Coupled | f r = 3.53 MHz, Vpt = 688 Vpp, 243 Vrms @ 0 deg, Vcoil = 928 Vpp, 328 Vrms @ -2.5 deg |
| 39-10 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 2.2kΩ set Rheostat (V2.2k) @ 50 ns/div, 812, No Audio Input, AC Coupled | f r = 3.65 MHz, Vpt = 732 Vpp, 259 Vrms @ 0 deg, V2.2k = 258 Vpp, 91 Vrms @ -9 deg |
| 39-11 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 812 Triode Grid Voltage (Vgr) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.64 MHz, Vpt = 764 Vpp, 270 Vrms @ 0 deg, Vgr = 306 Vpp @ +177 deg |
| 39-12 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 812 Triode Grid Voltage (Vgr) @ 50 ns/div, No Audio Input, AC Coupled | f r = 3.60 MHz, Vpt = 265 Vrms @ 0 deg, Vgr = 96.5 Vrms @ +178 deg |
| 39-13 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. 809 Cetron Triode Anode Voltage (Van) @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.52 MHz, Vpt = 800 Vpp, 283 Vrms, Van = 1.06 kVpp, 375 Vrms, 559 Vdc, Ian = 85 mAdc |
| 39-14 | No Plasma Tube (Vnpt) (open circuit) in series w/2.2kΩ set Rheostat vs. 809 RCA Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 4.18 MHz, Vpt = 1.08 kVpp, 382 Vrms, Van = 1.20 kVpp, 424 Vrms, 616 Vdc, Ian = 76.8 mAdc |
| 39-15 | AZ-58 Variable Capacitor (full CCW) set to 442 pF connected to Plasma Tube Input (with No Plasma Tube) in series with Plasma Tube Tuning Rheostat set to 0Ω vs. 809 RCA Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 2.62 MHz, Vpt = 304 Vpp, 108 Vrms, Van = 1.46 kVpp, 516 Vrms, 696 Vdc, Ian = 41 mAdc |
| 39-16 | AZ-58 Variable Capacitor (full CW) set to 21 pF connected to Plasma Tube Input (with No Plasma Tube) in series with Plasma Tube Tuning Rheostat set to 0Ω) vs. 809 RCA Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 3.78 MHz, Vpt = 1.16 kVpp, 410 Vrms, Van = 1.30 kVpp, 460 Vrms, 603 Vdc, Ian = 63.2 mAdc |
| 39-17 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 0Ω vs. RCA 809 Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 3.41 MHz, Vpt = 512 Vpp, 181 Vrms, Van = 740 Vpp, 262 Vrms, 586 Vdc, Ian = 69.2 mAdc |
| 39-18 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 2.2kΩ vs. RCA 809 Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 3.52 MHz, Vpt = 720 Vpp, 255 Vrms, Van = 960 Vpp, 340 Vrms, 577 Vdc, Ian = 79.8 mAdc |
| 39-19 | AZ-58 Variable Capacitor set to 54.4 pF connected to Plasma Tube Input (with No Plasma Tube) in series with Plasma Tube Tuning Rheostat set to 0Ω vs. 809 RCA Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 3.41 MHz, Vpt = 1.06 kVpp, 375 Vrms, Van = 1.50 kVpp, 530 Vrms, 594 Vdc, Ian = 56.2 mAdc |
| 39-20 | AZ-58 Variable Capacitor set to 54.4 pF connected to Plasma Tube Input (with No Plasma Tube) in series with Plasma Tube Tuning Rheostat set to 2.2kΩ vs. 809 RCA Triode Anode Voltage (Van) @ 100 ns/div, No Audio Input, DC Coupled | f r = 4.00 MHz, Vpt = 1.00 kVpp, 354 Vrms, Van = 1.06 kVpp, 375 Vrms, 545 Vdc, Ian = 79.1 mAdc |
| 39-21 | Audio Oscillator (Vau) set for 50 Vpp squarewave (fau) @ ≈ 21275 Hz (carcinoma) | fau = 21.37 kHz, Vau = 50 Vpp |
| 39-22 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 2.2kΩ vs.Audio Oscillator (Vau) set for 50 Vpp squarewave (fau) @ ≈ 21275 Hz (carcinoma) | f burst = 1/ 4.75ms = 210 Hz, Vburst = 1.04 kVpp, fau = 21.37 kHz, Vau = 50 Vpp |
| 39-23 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 0Ω and 0.10Ω Current Sense Resistor vs. Top of 0.10Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.39 MHz, Vpt = 448 Vpp, 158 Vrms, V0.10 = 368 mVrms |
| 39-24 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 800Ω and 0.10Ω Current Sense Resistor vs. Top of 0.10Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.53 MHz, Vpt = 560 Vpp, 198 Vrms, V0.10 = 356 mVrms |
| 39-25 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 1.5kΩ and 0.10Ω Current Sense Resistor vs. Top of 0.10Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.50 MHz, Vpt = 632 Vpp, 224 Vrms, V0.10 = 379 mVrms |
| 39-26 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 2.2kΩ and 0.10Ω Current Sense Resistor vs. Top of 0.10Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.52 MHz, Vpt = 592 Vpp, 209 Vrms, V0.10 = 394 mVrms |
| 39-27 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 0Ω and 0.05Ω Current Sense Resistor vs. Top of 0.05Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.39 MHz, Vpt = 452 Vpp, 160 Vrms, V0.10 = 467 mVrms |
| 39-28 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 800Ω and 0.05Ω Current Sense Resistor vs. Top of 0.05Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.53 MHz, Vpt = 576 Vpp, 204 Vrms, V0.10 = 571 mVrms |
| 39-29 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 1.5kΩ and 0.05Ω Current Sense Resistor vs. Top of 0.05Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.50 MHz, Vpt = 644 Vpp, 228 Vrms, V0.10 = 528 mVrms |
| 39-30 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 2.2kΩ and 0.05Ω Current Sense Resistor vs. Top of 0.05Ω Current Sense Resistor @ 50 ns/div, No Audio Input, DC Coupled | f r = 3.51 MHz, Vpt = 596 Vpp, 211 Vrms, V0.10 = 528 mVrms |
| 39-31 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 100 ns/div, 809, No Audio Input, AC Coupled. AZ-58 Variable Capacitor set to 440 pF in parallel with C1 = 150 pF. | f r = 3.06 MHz, Vpt = 632 Vpp, 223 Vrms @ 0 deg, Vcoil = 704 Vpp, 250 Vrms @ ≈ 0 deg |
| 39-32 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 100 ns/div, 809, No Audio Input, AC Coupled. Normal hookup. | f r = 3.40 MHz, Vpt = 648 Vpp, 229 Vrms @ 0 deg, Vcoil = 940 Vpp, 332 Vrms @ ≈ 0 deg |
| 39-33 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 100 ns/div, 809, No Audio Input, AC Coupled. AZ-58 Variable Capacitor set to 207 pF in series with C1 = 150 pF. | f r = 3.45 MHz, Vpt = 808 Vpp, 286 Vrms @ 0 deg, Vcoil = 1.14 kVpp, 403 Vrms @ ≈ 0 deg |
| 39-34 | Plasma Tube Voltage (Vpt) in series w/2.2kΩ set Rheostat vs. Top of Resonant Tank Coil (Vcoil) @ 100 ns/div, 809, No Audio Input, AC Coupled. AZ-58 Variable Capacitor set to 112 pF in series with C1 = 150 pF. | f r = 3.56 MHz, Vpt = 888 Vpp, 314 Vrms @ 0 deg, Vcoil = 1.14 kVpp, 403 Vrms @ ≈ 0 deg |
| 39-35 | Plasma Tube Voltage (Vpt) in series with Plasma Tube Tuning Rheostat set to 0Ω vs. Top of Resonant Tank Coil (Vcoil) @ 100 ns/div, 809, No Audio Input, AC Coupled | f r = 3.32 MHz, Vpt = 616 Vpp, 218 Vrms @ 0 deg, Vcoil = 840 Vpp, 297 Vrms @ -10 deg |
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