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1L20: Difference between revisions
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{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Frequency range | 10 MHz to 4 GHz }} | {{Spec | Frequency range | 10 MHz to 4 GHz }} | ||
{{Spec | Sensitivity | | {{Spec | Sensitivity | −110 to −90 dBm }} | ||
{{Spec | Dispersion | 15 kHz to 60 MHz, magnifier usable to 2.5 kHz }} | {{Spec | Dispersion | 15 kHz to 60 MHz, magnifier usable to 2.5 kHz }} | ||
{{Spec | Resolution bandwidth | 1 kHz to 100 kHz, variable }} | {{Spec | Resolution bandwidth | 1 kHz to 100 kHz, variable }} | ||
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==Prices== | ==Prices== | ||
$1,995 ( | $1,995 in 1965 ($19,400 in 2023 dollars) | ||
==Internals== | |||
Originally (in SN 100-519), the UHF oscillator tubes V40 and V41 were type [[Y1506]] (Tek part #[[154-0499-00]]). | |||
As the Y1506's became unavailable, a 1967 revision of the 1L20 changed these to [[Y1641]] (GE 16411?) tubes ([[154-0506-00]]), necessitating a slight modification of their DC filament supply circuit. | |||
==Pictures== | ==Pictures== | ||