6EH7
6EH7 is also designated EF183. Completed sales put the typical price at $11.61 per tube.
The 6EH7 is a remote-cutoff pentode in 9-pin miniature construction, designed for frequencies into the VHF range. Its chief application is in the IF amplifier stages of television receivers. The basing diagram is JEDEC 9AO.
Ratings
The 6EH7 heater requires 6.3 volts at 300 mA. Maximum heater-cathode voltage is 165 volts. Maximum plate voltage is 250 volts, with a maximum plate dissipation of 2.5 watts. Maximum grid #2 voltage is 250 volts, with a maximum grid #2 dissipation of 0.65 watts. Maximum cathode current is 20 mA, and maximum grid #1 circuit resistance is 1 megohm.
Characteristics
At a plate voltage of 200 V, grid #2 voltage of 90 V, and grid #1 voltage of −2 V, the 6EH7 has a transconductance of 12,500 µmhos and a plate resistance of 0.5 megohms. At 40 MHz, grid #1 impedance is 13 kilohms. Grid #1 to plate capacitance is 0.0055 pF maximum. Input capacitance is 9.5 pF, and output capacitance is 2.8 pF.
| Designation | Evidence | Confidence |
|---|---|---|
| EF183 | 69 independent documents | strong |
Equivalence is asserted only where the archive's own literature states it directly, in at least 40 separate documents. Tubes that merely substitute in some circuits are not listed here.
| Measure | Per tube |
|---|---|
| Median | $11.61 |
| Typical range (25th–75th) | $3.30 – $13.61 |
| Most sales (10th–90th) | $1.94 – $18.25 |
| Extremes incl. outliers | $1.87 – $44.85 |
| Completed sales | 19 |
| Brand | Median | Range | Sales |
|---|---|---|---|
| Amperex | $11.61 | $10.57 – $11.61 | 5 |
| Condition | Median | Sales |
|---|---|---|
| NOS | $11.61 | 14 |
Per-tube prices from completed sales, 2026-06-29 to 2026-09-23. Matched pairs and quads are divided out. See the price index for how these move over time.
Original manufacturer datasheets for 6EH7, hosted by Frank Philipse's Electron Tube Data sheets.
| Manufacturer | Designation | Datasheet |
|---|---|---|
| Tung-Sol | 6EH7 | PDF (143 KB) |
| Sylvania | 6EH7 | PDF (113 KB) |
| RCA (HB3) | 6EH7 | PDF (68 KB) |
| Philips | EF183 | PDF (672 KB) |
| Philips | EF183 | PDF (226 KB) |
| Mazda-Belvu | EF183 | PDF (135 KB) |
Documents held here and used to write this page.
- EF183 (filed under EF183)
- TUMB-SOL -