[Boatanchors] HP 606 vs. 608

[Garey Barrell]

Since when did Ham radio become channelized????

I haven't noticed where there are any regulations that require 10 ^-9 
frequency measurements.

Not even 5 MHz "channels".  Never should have allowed "digital readouts" 
on ham gear!  :-)

Remember when all we had to obsess over was whether the SWR was 1.01 or 
1.0125:1  !?!?

73, Garey - K4OAH
Glen Allen, VA



Carl wrote:
> Since when does any HP counter use a free running oscillator for the 
> basic unit?
>
> Carl
> KM1H
>
>
> ----- Original Message ----- 
> From: "Richard W. Solomon" <w1ksz at earthlink.net>
> To: <boatanchors at qth.net>
> Sent: Wednesday, February 11, 2009 7:58 PM
> Subject: Re: [Boatanchors] HP 606 vs. 608
>
>
>   
>> I wouldn't trust a frequency counter with a free-running reference 
>> oscillator
>> unless you have a way to calibrate it. If you use a GPSDO and the 10 
>> MHz output
>> as your counter reference you are in pretty good shape.
>>
>> 73, Dick, W1KSZ
>>
>> -----Original Message-----
>>     
>>> From: "James A. (Andy) Moorer" <jamminpower at earthlink.net>
>>> Sent: Feb 11, 2009 7:52 PM
>>> To: boatanchors at qth.net
>>> Subject: Re: [Boatanchors] HP 606 vs. 608
>>>
>>> Indeed, using a generator with dinky little output transistors to feed 
>>> an
>>> unknown piece of equipment is asking for trouble. Feeding something 
>>> with a
>>> 606 or 608 which have vacuum-tube followers on 150-volt power supplies 
>>> will
>>> take just about anything you can give it - and may fry whatever you 
>>> try to
>>> connect it to.
>>>
>>> Indeed, the 606 makes a great VFO, although the output may be a bit 
>>> hot for
>>> your use, and, as noted before, you will want to use it with the 8708
>>> synchronizer to keep it from drifting off the edge of the band. A .01 
>>> in the
>>> line never hurt anything. Similarly, you may want to put a frequency 
>>> counter
>>> on it to see exactly where you are. The 608 has two outputs - one 
>>> isolated
>>> output before the attenuator that can go right into a frequency 
>>> counter, and
>>> the other after the attenuator that can go to the crystal input.
>>>
>>> James A. (Andy) Moorer
>>> www.jamminpower.com
>>>
>>> ----- Original Message ----- 
>>>
>>>       
>>>> Be very careful. I was once working on a transmitter and needed VFO 
>>>> input.
>>>> Hooked up my  Hi Tech HP Signal Generator and found I was pumping 
>>>> voltage
>>>> from the transmitters Osc stage back into the Signal Generator. Blew 
>>>> out a
>>>> proprietary output chip on the generator and hence destroyed it. Not
>>>> happy!!
>>>> Lesson for me is that I ALWAYS put a .01 mfd cap in the line of my
>>>> generator
>>>> now.
>>>>
>>>> Mark V Johnson VE3DJU/VE3DDI
>>>> ----- Original Message ----- 
>>>> From: "Barrie Smith" <barrie at centric.net>
>>>> To: <boatanchors at qth.net>
>>>> Sent: Wednesday, February 11, 2009 6:44 PM
>>>> Subject: Re: [Boatanchors] HP 606 vs. 608
>>>>
>>>>
>>>>         
>>>>> I have a 606A.
>>>>>
>>>>> I've been thinking of using a small rice-box as a VFO for my
>>>>> HT-4B/BC-610.
>>>>>
>>>>> I wonder if the 606A would work well as a VFO for the transmitter?
>>>>>
>>>>> I would be feeding the output of the 606A into the crystal socket 
>>>>> on the
>>>>> tuning unit.
>>>>>
>>>>> Any thoughts?
>>>>>
>>>>> 73, Barrie, W7ALW
>>>>>
>>>>>