Antique radios, Old Time Radios
TAA521
|
Country:
Germany
|
|
| Identical to |
TAA521
= µA709
= SN72709
|
| Similar
Tubes |
Normally replaceable-slightly different:
MAA503
; MAA504
; N5709T
Other characteristic (electr. data):
TAA522
|
| First Source
(s) |
Oct.1966 : -- Collector info (Sammler)
|
|
Successor Tubes
|
TBA221
|
| Base |
Wires
|
| Filament |
Solid State |
| Description |
Operational Amplifier
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
10 x 6 x mm / 0.39 x 0.24 x inch |
| Weight |
1 g / 0.04 oz |
| |
|
| |
TAA521: Siemens Halbleiter-Beispiele 1973
Günther Stabe † 19.8.20
|
|
|
 |
|
TAA521: G.S.
Günther Stabe † 19.8.20
|
| |
|
TAA521: Elektor 1977
Günther Stabe † 19.8.20
|
| |
|
TAA521: Siemens Integrierte Schaltungen 1972/73
Thomas Günzel
|
|
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
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