1619
1619 has no equivalent designation confirmed by the archive. Completed sales put the typical price at $13.13 per tube.
The 1619 is a vacuum tube with a filament, a plate, Grid No. 1, Grid No. 2, and Grid No. 3, and a shell connected to the cathode. Its operating frequencies are covered on the data sheet TRANS. TUBE RATINGS vs FREQUENCY.
Mounting and Connections
The 1619 must be mounted vertically, base up or down; horizontal mounting is not permitted. Grid No. 3 and the beam-forming plates should be connected to the mid-point of the filament when operated on a.c., or to the negative end of the filament when a d-c filament supply is used.
Operating Conditions
For a-c filament supply, the stated voltages should be decreased by 1.75 volts if d.c. is used. The total effective grid-circuit resistance should not exceed 25000 ohms. Modulation essentially negative may be used if the positive peak of the audio-frequency envelope does not exceed 115% of the carrier conditions.
Push-Pull Class AB2 Amplifier Ratings
In push-pull Class AB2 amplifier operation with fixed bias, the maximum D-C plate voltage is 400 volts, the maximum D-C screen voltage (Grid #2) is 300 volts, the maximum signal D-C plate current is 75 mA, the maximum plate input is 30 watts, the maximum screen input is 3.5 watts, and the maximum plate dissipation is 15 watts. Typical conditions for this operation include a D-C plate voltage of 77 volts, a beam-forming plate voltage of 0 volts, a zero-signal D-C plate current of 75 mA, a maximum signal D-C plate current of 150 mA, a zero-signal D-C screen current of 6.5 mA, a maximum signal D-C screen current of 11.5 mA, a load resistance per tube of 1500 ohms, and an effective load resistance (plate to plate) of 6000 ohms.
Other Operating Conditions
In one operating condition, the power output is approximately 19.5 watts, the load resistance per tube is 3500 ohms, the effective load resistance (plate to plate) is 14000 ohms, and the total harmonic distortion is 3%. In another operating condition, the maximum signal power output is approximately 17.5 watts, and the maximum signal D-C screen current is 10 mA. The datasheet specifies that screen voltage regulation, grid-bias regulation, and plate-circuit regulation should not be greater than 5%, 5%, and 3%, respectively.
| Measure | Per tube |
|---|---|
| Median | $13.13 |
| Typical range (25th–75th) | $9.38 – $27.04 |
| Most sales (10th–90th) | $4.50 – $41.70 |
| Extremes incl. outliers | $0.93 – $42.80 |
| Completed sales | 14 |
| Brand | Median | Range | Sales |
|---|---|---|---|
| RCA | $10.19 | $9.38 – $27.04 | 8 |
| Ken-Rad | $16.91 | $15.00 – $41.70 | 4 |
| Condition | Median | Sales |
|---|---|---|
| NOS | $20.93 | 9 |
| used | $7.25 | 5 |
Per-tube prices from completed sales, 2026-06-14 to 2026-09-06. Matched pairs and quads are divided out. See the price index for how these move over time.
Original manufacturer datasheets for 1619, hosted by Frank Philipse's Electron Tube Data sheets.
| Manufacturer | Designation | Datasheet |
|---|---|---|
| RCA (HB3) | 1619 | PDF (599 KB) |
Documents held here and used to write this page.
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