Re: WTB: 3B4 plug in for RTTY


widgethunter
 

That could be problematic; the hor input isn't cal'd and it probably won't match the vertical plugin's impedance or gain. For symmetrical x/y displays of equal bw you will likely need 2 identical vertical amps, cal'd to the input sensitivity of the mainframe.

-----Original Message-----
From: greenboxmaven via groups.io <ka2ivy=verizon.net@groups.io>
To: TekScopes@groups.io
Sent: Thu, Dec 17, 2020 9:46 am
Subject: Re: [TekScopes] WTB: 3B4 plug in for RTTY

I want to be able to display other signals as well as the  common RTTY
X-Y tuning indication without needing to exchange the modules.

      Bruce Gentry, KA2IVY


On 12/17/20 12:38, widgethunter via groups.io wrote:
why not use another vertical plug-in for external hor input?
 
 
 
-----Original Message-----
From: greenboxmaven via groups.io <ka2ivy=verizon.net@groups.io>
To: TekScopes@groups.io
Sent: Wed, Dec 16, 2020 8:37 pm
Subject: [TekScopes] WTB: 3B4 plug in for RTTY

I am going to use the 561B rack mount scope I have restored in an RTTY
setup.  The time base I have does not offer an external horizontal
input. A 3B4 or perhaps 3T4 does have it. Does anyone have one to spare?
Thanks,

Bruce Gentry, KA2IVY











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