Hi everyone,
I have a strong interest in retro computing, RF design, and embedded systems. Outside of work, I enjoy tinkering with vintage hardware, analyzing PCB designs, and diving into datasheets for fun. Lately, I've been especially curious about RF front-end modules and the role of GaN/GaAs in modern and legacy systems.
Looking forward to learning from the amazing minds here.
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My Personal Introduction
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rubber_jonnie
- Site Admin
- Posts: 12987
- Joined: Thu Aug 17, 2017 7:40 pm
- Location: Essex
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Re: My Personal Introduction
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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stephen_usher
- Site sponsor
- Posts: 6765
- Joined: Mon Nov 13, 2017 7:19 pm
- Location: Oxford, UK.
- Contact:
Re: My Personal Introduction
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
Re: My Personal Introduction
All the DTV Tuners we designed at Zarlink in Swindon used to be Bipolar (GaAs) technology up to about 2005 when we went RF CMOS. That allowed the tuners and the demodulators to go into the DTV SoC processes mopping up two chips on the motherboard or expensive MCM packages. I seem to remember the performance wasn't as good but the cost savings made it the winning design. I only worked in the digital bit so I had little or no interaction with the teams doing the work. The Bipolar fab in Swindon closed shortly afterwards.getawaycar wrote: Tue Jun 10, 2025 7:21 am I've been especially curious about RF front-end modules and the role of GaN/GaAs in modern and legacy systems.
Principal ASIC Engineer - SystemVerilog, VHDL
Thalion Webshrine - http://thalion.atari.org
STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Thalion Webshrine - http://thalion.atari.org
STf,STfm,STe,MegaST,MegaSTe,Falcon060
A500+,A600,A4000/060,CD32,CDTV
Re: My Personal Introduction
Welcome to the forum!
