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tuning for 1296MHz
I had one PA that wouldn't tune on the input with a very high SWR at 1296MHz so the secret here is to not link the tuning pads at all to start with and then gradually cut of some of the matching stub
By James Smith · #35 ·
kits delivered
A number of you who have received their kits have been very kind to let me know they arrived. It would be much appreciated if the others could do the same for the first issue or issue 2
By James Smith · #34 ·
Kits now all gone
The 23cms PA kits are now all gone. I have kept 2 of issue 1 and 2 of issue 2 which I will keep until I am sure that everyone has received their kits - it takes up to 1 month to get to Australia and
By James Smith · #33 ·
Re: issue 2 kits - 15 left in stock
Now only 5 left!
By James Smith · #32 ·
issue 2 kits - 15 left in stock
I have 15 issue 2 partial kits left in stock at ?37.00GBP + postage these include a machined heat spreader , transistor, PCB and ATC caps If you want one (or more) it is first come - first served! -
By James Smith · #31 ·
Re: READY TO SHIP
The latest batch of partial PA kits for 23cms using the G4BAO PCB is now being shipped to customers who placed orders and there are a few left over so if you want some then don't message me but email
By James Smith · #30 ·
READY TO SHIP
THE PA KITS ARE READY TO SHIP - i HAVE SENT EMAILS TO EVERYONE ON THE LIST - CHECK YOUR SPAM FOLDER JUST IN CASE
By James Smith · #29 ·
Re: Tinplate box
he also has SMA panel sockets
By James Smith · #28 ·
Tinplate box
Tinplate boxes are available from G3NYK Alan Melia type 1000105 55.5 x 74 x 30mm for ?3.40 each plus postage
By James Smith · #27 ·
Re: rectangular hole in PCB
also open out the centre holes to 3mm
By James Smith · #26 ·
First batch now all gone
The issue 1 23cms PA partial kits have now all been paid for and shipped. A few of my emails went into spam folders! I am now waiting for delivery of the PCB's and heat spreaders so that I can send
By James Smith · #25 ·
UPDATE ON ISSUE 1 BEING SENT OUT AND ORDERS FOR ISSUE 2
*The first Issue partial kits are being mailed out and are going fast ¨C only a few left to go as I am still waiting for payment.* *I have emailed everyone on the first list but some of my
By James Smith · #23 ·
Re: transistors that will work with the G4BAO PCB
Digikey MRFE6S9060NR1 - ?37.50? IN STOCK Mouser MRFE6S9045NR1 - ?25.69? IN STOCK Mouser MRFE6S9060NR1 - ?29.69? IN STOCK Farnell? MRFE6S9045NR1 - ?27.53? BACK ORDER Farnell? MRFE6S9060NR1 -
By James Smith · #22 ·
my email
thebigclunk at virginmedia dot com
By James Smith · #21 ·
rectangular hole in PCB
The rectangular hole in the centre of the pcb will need opening out slightly with a needle file to fit the transistor. If you do it on an earthed? metal surface you should be ok for static. Just make
By James Smith · #20 ·
70 Watt amplifier kit for 23cms
Will anybody on the first issue list who has not received a payment notification please email me direct on thebigclunk@... I tried to email everyone but some of the requests were via
By James Smith · #19 ·
First PA using manufactured PCB's
I have just built and tested the first production PA using a Manufactured PCB in Rogers 4350 from PW Circuits Ltd Leicester It needed a good hot soldering iron because the PCB material conducts heat
By James Smith · #18 ·
16 photos uploaded #photo-notice
The following photos have been uploaded to the Ist build with manufactured boards ( /g/G7NTG23cmsPA/album?id=250599 ) album of the [email protected] group. * DSCF6250.JPG (
By [email protected] Notification <G7NTG23cmsPA@...> · #17 ·
Re: Transistor MRFE6S9060NR1 are still available through Mouser for ?29,69 and Digi-Key for ?30.54 so if you blow one up you can still get good ones.
and in stock at digi-key as MRFE6S9045NR1CT-ND https://www.digikey.co.uk/product-detail/en/nxp-usa-inc/MRFE6S9045NR1/MRFE6S9045NR1CT-ND/1971811
By James Smith · #16 ·
Re: Transistor MRFE6S9060NR1 are still available through Mouser for ?29,69 and Digi-Key for ?30.54 so if you blow one up you can still get good ones.
MRFE6S9045NR1 is also available from Farnell on back order
By James Smith · #15 ·