Ham Radio Homebrew Informations: Re: [HamBrewers] Re: 2M VHF

I wonder where one get the 455khz IFT that used get plenty earlier but hardly any one sells now a days.

73s

Vu3Psz

From: Rajesh Kannan <kc2kby@airtelmail.in>
To: HamBrewers@yahoogroups.com
Sent: Mon, 14 February, 2011 6:04:30 PM
Subject: Re: [HamBrewers] Re: 2M VHF

It is the can with Yellow paint on the screw. If you pull it out of an old transistor, it is tuned!

73's

Raj

VU3RGK

On Mon, Feb 14, 2011 at 5:40 PM, Mathew P.C <pcmathew2003@yahoo.co.in> wrote:

Hi,
L9 - Use transistor IF coil which can be tuned to 455kHz.
Mathew

--- On Sun, 13/2/11, sambhu <sambhu_ec@yahoo.com> wrote:

From: sambhu <sambhu_ec@yahoo.com>
Subject: [HamBrewers] Re: 2M VHF
To: HamBrewers@yahoogroups.com
Date: Sunday, 13 February, 2011, 9:03 PM

Sir,
Thanks for the data.one friend Tarun has also provided this today..
Thanks for both of you..
Glad to hear you have much experience with this Rig..I have one more doubt

L9 is Quadrature detector coil.
In the data provided,it is directed to use 'Standard 455khz coil'

is this the same IF coils used in old transistor radios?
Yellow,Green and White..Which one should i use??

Thanking once again Sir
--- In HamBrewers@yahoogroups.com, "Mathew P.C" <pcmathew2003@...> wrote:
>
> Hi ,
> Attached, please find, the coil data for 2M VHF by vu2EM, which uses the ckt by VU2IF.
> I have constructed two nos. of the transceiver and they are still in use with excellent result. The only problem with the rig is that it has only two channels, 145.5 and 145.2MHz.
> I am very glad to share my experience with the home brewing.
>
> vu2mtw (P.C.Mathew)
>
> --- On Fri, 11/2/11, sambhu <sambhu_ec@...> wrote:
>
> From: sambhu <sambhu_ec@...>
> Subject: [HamBrewers] 2M VHF
> To: HamBrewers@yahoogroups.com
> Date: Friday, 11 February, 2011, 2:12 PM
>
> Hello Friends,
>
> I want to build a 2m receiver..I have decided to follow the architecture of VU2IF 2m vhf transceiver. But over the internet i cant find the RX coil data. Only the coils in the TX portion is described in the PDF available in internet.
>
> if somebody has the winding details of coils in RX portion, then kindly share with me
>
>
> By the way i will explain a bit about my idea..
> 1. RF amp using BF 988
> 2. Mixer using the same DG MOSFET
> 3. FM IF using MC3359
> 4. A PLL oscillator designed around a PIC and LMX 2306 or ADF 4116
> 5. AF amp TBA 810
>
> Waiting for your help,
> Thanking in advance
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>

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