Charlie Tango 11m DX Radio Group Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.


Welcome to the Charlie Tango DX Group. The home of ALL things Radio - CB, 11m DX, Amateur, PMR446, PLD, Network and Data. We welcome all radio enthusiasts of all knowledge levels. Join today and claim your own unique World Famous CT Call-sign
 
HomeEventsCalendarFAQLatest imagesSearchRegisterLog in
Join in with the fun of the Charlie Tango DX Group Summer 10m Challenge - from April 1st 2024
Navigation
Useful Radio Sites
Log in
Username:
Password:
Log in automatically: 
:: I forgot my password
CT Bill Board





Views This Year
All Time Views
Classified Adverts

Latest topics
» New Member Call Sign Request
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 11:12 pm by John123

» Southern Area and South Coast SSB Net
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 8:20 pm by Razz229

» New Member Call Sign Request
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 3:11 pm by chris stevenson

» Hello and Call-sign Request (Issued)
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 2:32 pm by Stephen glanvill

» Call sign request (Issued)
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 10:54 am by Stephen glanvill

» New member - vintage rigs in use?
Final Amplifier Build...  - Page 2 Icon_minitimeToday at 10:36 am by Miura

» Hello from Milton Keynes
Final Amplifier Build...  - Page 2 Icon_minitimeYesterday at 10:21 pm by John123

» Call sign request (Issued)
Final Amplifier Build...  - Page 2 Icon_minitimeYesterday at 9:37 pm by John123

» 10m DXCC Summer Challenge contacts 2024
Final Amplifier Build...  - Page 2 Icon_minitimeYesterday at 9:25 pm by John H

Keywords
chart 9900 sign software Mckinley president call 6900 power Sirio 2023 supply lincoln meter display anytone yaesu 2022 Mobile ss9900 Baofeng list callsign frequency ALINCO antenna
QRZ Database

 

 Final Amplifier Build...

Go down 
+3
John123
GaryWilson
MM0IMC
7 posters
Go to page : Previous  1, 2
AuthorMessage
MM0IMC
Contributor
Contributor



Call Sign : 108-CT-226 / MM0IMC
Posts : 86
Times Thanked : 2
Join date : 2023-03-10
QTH or Location : Ayrshire
Equipment Used : Amstrad 901 Sidebander

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeThu Jun 08, 2023 2:20 pm



Here's the sound level of the amplifier, now fitted with sound dampening material...

Victor likes this post

Back to top Go down
SangueG
Major contributor
Major contributor
SangueG


Call Sign : 26-CT-3971 / 2E0LMI
Posts : 1183
Times Thanked : 68
Join date : 2021-01-30
QTH or Location : Cirencester, Gloucestershire
Equipment Used : Little radios, home-made antennas

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeFri Jun 09, 2023 6:02 am

A fitting name for its sound. I do love the metal finish though so hope you're not going to give it an orange lick of paint...

MM0IMC likes this post

Back to top Go down
https://station-master.online/2E0LMI
Alan Pilot
Major contributor
Major contributor
Alan Pilot


Call Sign : 163-CT-220...MW7TTA
Posts : 2518
Times Thanked : 69
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Yaesu FTDX-10,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.
Age : 150

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeFri Jun 09, 2023 6:40 am

Good brand that Flymo.
Victor runs a Flymo antenna.

Victor, SangueG and MM0IMC like this post

Back to top Go down
MM0IMC
Contributor
Contributor



Call Sign : 108-CT-226 / MM0IMC
Posts : 86
Times Thanked : 2
Join date : 2023-03-10
QTH or Location : Ayrshire
Equipment Used : Amstrad 901 Sidebander

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeFri Jun 09, 2023 8:37 am

SangueG wrote:
A fitting name for its sound. I do love the metal finish though so hope you're not going to give it an orange lick of paint...

Painting is a real hassle, as I would have to use a special primer for aluminium.
Back to top Go down
Victor
CT Directors
CT Directors
Victor


Call Sign : 26-CT-3228 / M7VIC
Posts : 5803
Times Thanked : 352
Join date : 2019-11-10
QTH or Location : Bedford
Equipment Used : Various

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeFri Jun 09, 2023 8:43 am

It's from a Bosch Alan.
Lot less bovver than a........oh wait, that's the other one. Wink Very Happy


Bit of a whir going on there Ian but if it's keeping it all cool and working who's to complain. Final Amplifier Build...  - Page 2 1f44d

It's only when it's married up to certain setups that it becomes a problem.......

"The name this way is Brian..." (What's that all about?)
"Currently running a H**l boom mike." (Ah, that's why I can hear the whir in the background...and the dog passing wind....or was that you? Embarassed )


Great job there Ian and you should be suitably proud of your efforts. Well done.
(Love the Dymo labels!)

MM0IMC likes this post

Back to top Go down
https://www.qrz.com/db/M7VIC
MM0IMC
Contributor
Contributor



Call Sign : 108-CT-226 / MM0IMC
Posts : 86
Times Thanked : 2
Join date : 2023-03-10
QTH or Location : Ayrshire
Equipment Used : Amstrad 901 Sidebander

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeSun Jul 02, 2023 12:28 pm

I removed GI-6B valve from the RF deck and replaced it with the original GI-46B valve. I've removed 3 transformers and replaced them with a single toroidal one. This supplies the high voltage, 12.6V AC for the valve heater and 17V AC for the 12V DC rectifier (relays, etc).  

It'll still do 400W, but the GI-46B valve is a bit more robust that the GI-6B version... 

I've also added a better HV rectifier board, bought bare from eBay.  It's now working, so I'm not spending anymore time and money on it. It'll put it away to one side, to collect dust... 🙄

Final Amplifier Build...  - Page 2 20230710
Final Amplifier Build...  - Page 2 20230611
Final Amplifier Build...  - Page 2 20230711

GaryWilson and SangueG like this post

Back to top Go down
MM0IMC
Contributor
Contributor



Call Sign : 108-CT-226 / MM0IMC
Posts : 86
Times Thanked : 2
Join date : 2023-03-10
QTH or Location : Ayrshire
Equipment Used : Amstrad 901 Sidebander

Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitimeSat Jul 08, 2023 9:53 am

Post script...  I couldn't get the efficiency from the GI-46B valve I was expecting, so I put the old GI-6B valve in - Bingo!  The GI-6B valve is performing as it should and I'm getting the performance I expected.

GaryWilson likes this post

Back to top Go down
Sponsored content





Final Amplifier Build...  - Page 2 Empty
PostSubject: Re: Final Amplifier Build...    Final Amplifier Build...  - Page 2 Icon_minitime

Back to top Go down
 
Final Amplifier Build...
Back to top 
Page 2 of 2Go to page : Previous  1, 2
 Similar topics
-
» Kl703 amplifier
» 20m 813 Linear Amplifier.
» My first Camper van Build
» Cte 767 amplifier
» Which Amplifier for RM KL 203 P please???

Permissions in this forum:You cannot reply to topics in this forum
Charlie Tango 11m DX Radio Group Forum :: Help and Discussion Forums :: Amplifiers-
Jump to: