#282 and #285 are 6 pole filters
Keith W8GX
On Jul 8, 2011, at 8:27 PM, Ken Brown wrote:
> Hi All,
>
> I have been trying to keep an accurate reference of Ten-Tec filters,
> mostly focusing on pre-Orion radios. I have deleted some information
> that has been identified to me as incorrect, and added the notes about
> the probable application of the stock number 48057 and 48127 filters. It
> seems that "stock" non-optional filters generally have a stock number
> but do not have a model number. Model 220 may be an exception. Any
> additions, confirmations or corrections are appreciated.
>
>
> Ten-Tec IF filter data
>
> Model Number / Stock Code / Bandwidth Hz / Center frequency MHz / Poles
>
> 216 / 48161 / 500 / 9.002210 / 6 RTTY filter
> 217 / 48036 / 500 / 9.000750 / 8
> 218 / 48037 / 1800 / 9.001500 / 8
> 219 / 48055 / 250 / 9.000750 / 6 /8047 / 6840
> ??? / 48057 /?/?/4/Guess Corsair 2.4 kHz stock filter unconfirmed
> 220 / 48058 / 2400 / 9.001500 / 8 /8307 / 6840 Omni stock filter?
> 221 / 48243 / 250 / 9.000500 / 6 Low note CW filter
> 282 / 48054 / 250 / 6.299250 / 8
> 285 / 48053 / 500 / 6.299250 / 8
> 288 / 48075 / 1800 / 6.300000 / 8 / 9125 / N5
> unk / 48127 / 6000 / 9 / ? / Paragon AM filter??
> unk / 48074 / 2400 / 6.3 / Stock (non-option) 6.3 MHz filter>
>
> Following the number of poles are other numbers that have been reported
> seen on these filters. They may be date codes or PCB design numbers.
>
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> DE N6KB
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