[TenTec] Delta 580 vfo transistor equivs.

[Troy Wideman]

Richard,
 I looked up the three ( Motorola ) transistors in three substitution
handbooks that I have. I could not find the characteristics for the devices,
however the books list the following as substitutes:
MPS 6512
        ECG # 123AP
        SK # 3122, or 31444/123A
        GE # 61, or 210
        IR/WEP # TR/735
        HEP # S0025
        Radio Shack # 2038
MPS 3693
        ECG # 123AP
        SK # 3018
        GE # 61
         IR/WEP # none
        HEP # none
        Radio Shack # 2038
MPS 6514
        ECG # 123AP
        SK # 3018, or 3444/123A
        GE # 210
        Radio Shack # 2038
Hope this is of help. 73, Troy, W6HV
Richard W Collins wrote:

> Hope someone can help.
>
> The vfo on my Delta 580 has died but fortunately the rig works fine on
> the remote vfo and therefore I'm not qrt! Just without rit.
> I can only think one of the two transistors has failed as there is power
> going to the board.
> Can anyone give me equivalents for the ones listed in the manual?
> oscillator MPS6512 or MPS3693,  and  MPS6514 the buffer amp.
> 2N... and BC...  series are available here in the UK.
> I'd like to be armed with replacements as the front panel needs to come
> off to get at the board.
> Thanks.
> --
>         Rich (G4PCE)
>
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