Antique radios, Old Time Radios
18
| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
Vacuum Pentode Power/Output |
|
Tube ID = 10701 |
 |
| Identical to |
18
|
| Similar
Tubes |
Normally replaceable-slightly different:
118_Endpentode; 18E; 218_Pentode
Heater different:
42
Other base:
14F6
|
| Successor Tubes |
14F6
|
|
| Base |
6-Pin-Base U6A, old, USA (Codex=Kdo)
|
| Filament |
Vf 14 Volts / If: 0.3 Ampere / |
| Description |
Maximum ratings : Va = 375 V, Vg2 = 285 V, Pa =11 W, Pg2 = 3,75 W; Vf/k = 90 V;
Class A1 operation: Va = 250 V; Vg2 = 250 V; Vg1 = -16,5 V; Ia = 34...36 mA; Ig2 = 6,5...10,5 mA; S = 2,5 mA/V; Ri = 80 k Ohms; Ra = 7 k Ohms; Rk = 410 Ohms; Po = 3,2 W; Vi = 16,5 V-eff; d-tot= 8 %
With exception of heater ratings and base, see more data under 6F6G. [JR]
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Internet
Miguel Angel Trujillo-Rodriguez
|
|
|
|
Collection JR
Jacob Roschy
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
various sources
Jacob Roschy
|
|
|
| Usage in Models (calculation each 25th of the
month) |
3= 1935 ; 3= 1936 ; 3= 1938 ; |
| Number of Models at Radiomuseum.org with
this tube (valve, valves, valvola, valvole,
válvula, lampe): 9 |
|
| No further Information
for |
18 |
|
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