[minima] Re: J310 mixer question
- From: Ik3nlk <mail@xxxxxxxxxx>
- To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
- Date: Thu, 27 Feb 2014 10:45:06 +0100
Thank you Steve and Jerry! I had this doubt because the mixer go in
autooscillation when I turn the balance trimmer. Is it ok that I get those
oscillations when I set the trim?
73 de Giorgio
Inviato da iPhone
Il giorno 26/feb/2014, alle ore 02:14, <jerry@xxxxxxxxxxxxxxxx> ha scritto:
> On the schematic the arrow for the gate is centered meaning the device
> is symmetrical. The drain and source can be switched with no ill
> effects. Jerry
>
> K5LRU
> Harwood, Texas
>
>> -------- Original Message --------
>> Subject: [minima] Re: J310 mixer question
>> From: "Steve VK2SJA" <vk2sja@xxxxxxxxxxx>
>> Date: Tue, February 25, 2014 4:51 pm
>> To: minima@xxxxxxxxxxxxx
>>
>>
>> Hi Giorgio,
>>
>> Short answer. Does not matter. The J310 device is "symmetrical".
>>
>> For the long answer, look for the section entitled "Symmetrical
>> Construction" in the link below:-
>>
>> http://www.cliftonlaboratories.com/jfet_variation.htm
>>
>> 73, Steve.
>>
>>
>>> Hi
>>> I have a doubt about J310 connections:
>>>
>>> are the 2 pin connected together to the trimmer via 4k7 resistor the
>>> drains or sources?
>>>
>>> Sorry if this question was already andwered but I don't find any info.
>>>
>>> Thanks
>>>
>>> 73 Giorgio
>>>
>>> Inviato da iPhone
>
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