20w harrier cbx mod .

[jason]

Having a bordom day so tidied up and found this



Took it apart like you do and thought it will fill the gap at the back of my cbx and also drive a linear amp a bit better

And yes after a bit of soldering , drilling and poking it fits and works .
Getting just over 20w with 4w in



Also found a fan and heatsink . Untill something more aestaticly pleasing comes along this heatsink will do



I will tidy it up a bit better when i get a better heatsink

[MrWeetabix]

Nothign like a good 'random project' to keep you out of Mischief! 20w CBX.... winner winner!

[Admiral]

Watcha sticking in the gap down the side of the mainboard? A 6m transverter would be nice.

[NightProwler]

Pretty cool I like it

[jason]

I not had any ideas for the side gap yet . I would like to fit an annoying roger beep at some point .

[Buick Mackane]

Watcha sticking in the gap down the side of the mainboard?

Your head


Tidy job jason

[jason]

A thumbs up from buick means i'm safe

[The Collector]

Dans famously expensive stainless steel cbx had an amp inside like that

[jason]

I had his non stainless version untill it got crushed by insurance company with the car after i survived a head on.

The stainless one was expensive yes. but only due to the bidding . All dan did was put it on ebay .

[163TM847]

How do you switch it on/off, Should have removed the big switch and run wires to a front panel switch, Handy that all the components are on solder side too, I have also seen those 20w amps stuck inside Cybernets and on the back of Uniden 300's.

That stainless steel CBX was a larf only the inlay was steel.

[jason]

How do you switch it on/off, Should have removed the big switch and run wires to a front panel switch, Handy that all the components are on solder side too, I have also seen those 20w amps stuck inside Cybernets and on the back of Uniden 300's.

That stainless steel CBX was a larf only the inlay was steel.

Hi Nick.

The on off switch still sits on the pcb as seen . The lid never goes on on this rig as i been playing and trying to learn some things with this one for a year or so .

The switch is always on but will plan to move it to the hi lo at the facia eventually.

Keeps me busy and i enjoy a bit of trial and error .

[jason]

Little bit more personalising to my cbx . Thought i would add to this thread as i keep adding to the cbx .
This eve i fitted a roger beep that bleeps in the style of knight rider. And a blue led into the signal meter .

I looking at changing out the channel display to blue also but not sure if i need a common anode or cathode one .
Anyway . Useless without pics so here ya go

[jason]

So the beep works and transmits. But also comes through the internal speaker .
Hmmmmm. I seem to remember something said about getting a relay somehow to cure this problem .

[Buick Mackane]

Aye you need a relay to mute the speaker whilst the bleep is sounding, The bleep holds your radios TX wire to ground whilst its activated, Just use the same principle to control a relay and fannys your dad and bobs your wife

Looky here
http://transmission1.net/viewtopic.php? ... ay#p433311

[ghost123uk]

Re an on-off switch, pretty sure you are not supposed to simply kill the power on those amps to turn them off. There is some signal routing switching to consider. Maybe a relay as used it some other amps, but bear in mind it's 27MHz RF that is being switched, so random wires to a random relay is not good.