[Boatanchors] Available Tube VLF Rcvrs

[Carl]

I deliberately did not mention the BC-1206 Bill! Its rather marginal to be 
polite.

Get that RBL fired up, I doubt it will need much work. I believe the dial 
face is available as a NC-100 item.

Carl
KM1H


----- Original Message ----- 
From: "Bill Stewart" <cwopr at embarqmail.com>
To: "Carl" <km1h at jeremy.mv.com>
Cc: <boatanchors at mailman.qth.net>
Sent: Thursday, July 09, 2009 12:49 PM
Subject: Re: [Boatanchors] Available Tube VLF Rcvrs


> Tnx all for the informative comments.
> Lady 'good luck' has shinned on me. Tnx to Carl causing a micro-micro nano 
> micro amp of current to flow thru a wrinkled brain cell I recalled that I 
> once had a couple of VLF rcvrs. One was the BC-1206 beacon rcvr and I knew 
> where that was up in the attic. But Carl's mention of the RBL & TRF got me 
> back into the attic and danged if I don't have one. Its a RBL-3 by 
> Wells-Gardner...15-600kc I think it is. It must have come thru Navy mars 
> 40 years ago. So as soon as I can get a hoist, I'll get it down..man, 75# 
> or so. Just a quick look reveled the plastic window 'glass' had 
> disintegrated and the tuning knob/cap is stuck. Hopefully, I can get 'er 
> going again. Tnx again for the interest.
>
> To Al, W8UT: Yes, there is a fairly good chance that I will be able to 
> make it to Cary...hope to see ya.
>
> 73 all, de Bill, K4JYS
>
> ----- Original Message -----
> From: "Carl" <km1h at jeremy.mv.com>
> To: "Rodger" <wq9e at dtnspeed.net>, "Bill Stewart" <cwopr at embarqmail.com>
> Cc: boatanchors at mailman.qth.net
> Sent: Wednesday, July 8, 2009 7:16:19 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Boatanchors] Available Tube VLF Rcvrs
>
> The Navy had them all.
>
> RAK
> RBA
> RBL
>
> The VLF-MF RAK and its companion MF-HF RAL are arguably the best regens 
> ever
> built.
>
> The RBA is a TRF with superb RF selectivity and audio filtering as is the
> RBL.
>
> Pricing varies but I picked up a RAK-7 with matching PS for $50 at a 
> hamfest
> in May to go with the RAL I already had. Im still looking for a RBA to
> complete the RBA/RBB/RBC set that I worked with in the USN
>
> Any frequency is practical and loop antennas work best for minimim noise.
> There is lots of Internet info on loops and preamps.
>
> If you really want to blow the budget the HRO-500 and LF-10 combination is
> among the best their are.
>
> Carl
>
>
>
> ----- Original Message ----- 
> From: "Rodger" <wq9e at dtnspeed.net>
> To: "Bill Stewart" <cwopr at embarqmail.com>
> Cc: <boatanchors at mailman.qth.net>
> Sent: Wednesday, July 08, 2009 6:52 PM
> Subject: Re: [Boatanchors] Available Tube VLF Rcvrs
>
>
>> Bill,
>>
>> Probably the most practical is a low frequency converter in front of any
>> set you already own.  I have a construction article for a simple one
>> somewhere that I can find and email you.
>>
>> Most modern synthesized radios tune down to "near DC" but the
>> performance is very poor down there.
>>
>> I have an RAK-7 I use which tunes from 15 to 600 Khz. in multiple
>> bands.  These receivers definitely are not practical to ship and they
>> are early WWII regenerative sets but work extremely well at VLF in case
>> you find one nearby.
>>
>> 73, Rodger WQ9E
>>
>> Bill Stewart wrote:
>>> Can anyone recommend a  tube type VLF rcvr which is still available at a
>>> reasonable cost. I'm not real sure what a practical low limit would be,
>>> but low enough for most beacons and up to 500kc plus. Would the SAQ
>>> 17.2kc freq be considered 'practical'.  Also, I expect the weight should
>>> be a consideration if shipping is involved. Tnx for your opinions.
>>> 73 de Bill K4JYS
>>> ______________________________________________________________
>>> Boatanchors mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Boatanchors at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>
>> ______________________________________________________________
>> Boatanchors mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Boatanchors at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html