Index
RIP Mike Pinder
Changelog 21/1/23 Update to Duelund page. 30/1/23 Gleanings 7 page added. 10/4/23 UREI 525 info added to 4th order LR state variable crossover page. 21/4/23 Gleanings 8 page added. 19/5/23 Update to Equal capacitor third order crossover page 22/5/23 More on the nearly equal capacitor crossover page added. 13/6/23 SB20FRPC30-8 added to Active shelving filter page. 9/7/23 Giles weather station added to Gleanings 2 page. 11/7/23 Meek mementoes page added. 12/7/23 Spanish culture page added. 18/7/23 Females in aviation page added. 4/8/23 Gleanings 9 page added 28/9/23 Raspberry Pi 5 on Raspberry Pi Part 2 page 1/11/23 Matched third order unity gain xover page updated. 12/11/23 Sil substitute page added. 21/11/23 Update to Princes in the tower page. 1/1/24 Gleanings 10 page added 5/2/24 Thomas North added to Shakespeare scrapbook page. 29/2/24 Pioneer D23 crossover page added 7/4/24 Active Q350 xover page added 9/4/24 Q150 issue page added.
- Kef Q150 issue
- Active version of modified Q350 xover
- Pioneer D23 active crossover
- Gleanings 10
- SIL substitute
- Gleanings 9
- Females in Aviation
- Spanish culture
- Meek mementoes
- More on the nearly equal capacitor Xover
- Gleanings 8
- Gleanings 7
- An active shelving filter with fast transition
- Gleanings 6
- Matched active 3rd order unity gain crossovers
- Gleanings 5
- Gyrator based graphic equaliser
- Gleanings 4
- Portable headphone amplifier simulation
- Active filters, Short cuts to network design
- Discrete active crossovers
- Le Cleach crossover, the significance of phase
- MFB filters
- Precision cost-effective crossover.
- Gleanings 3
- 2nd order Sallen & Key filter with independent frequency and damping tuning
- Tunable 3rd order Rumble filter
- Recasting Thiele-Small
- Chebychev crossover
- A 4th order LR state variable Xover
- Equal capacitor 3rd order active Xover
- The PW 12-12 amplifier (1969)
- 4th order elliptical Linkwitz-Riley Xover
- Inverse Chebyshev filter revisited
- Alternative active elliptical crossover
- Active elliptical crossover filter
- Gleanings 2
- TT crossover
- Bootstrap filters
- Darlington Part 5
- Emitter follower oscillator
- Sixth order active LR crossover
- Asymmetric crossovers
- Hardman crossover filter
- More 3rd order filters
- Bandpass filter
- Rumble filter
- 3rd order elliptical crossover with one op-amp
- Gleanings
- 4th order, single op-amp low/high pass filter + xover
- Negative output resistance amplifier
- Guy Martins WW1 Tank
- Good bass from a low Xmax woofer
- Minimalist Duelund crossover
- Darlington Part 4, more thoughts
- Some History of technology
- Shakespeare Scrapbook
- 80 years of BBC TV
- TTL & Microprocessors
- Beer
- Sallen & Key slope
- Rare pigs
- Flying Scotsman
- Olympus
- Ancient civilisations mystery
- Mystery of the Princes in the Tower
- Aviation mysteries
- The Maks
- Renaissance to Rock
- Raspberry Pi Part 2
- FR125S
- Simple Twin T oscillator
- MR16 Led bulb problem
- Darlington Pt 3 Serendipity
- Technology
- Hi fi humour
- Cost effective darlington amp Part 2
- Raspberry Pi
- Metal dome tweeters
- Motorcycles
- Orwell festival
- My new amplifier
- active and passive elliptic crossover
- Car & plane concepts
- Crow’s law
- simple cost effective darlington amplifier
- overclocking the 555 timer
- Rhythm of the rails
- Mysteries
- Cars
- Mission Freedom & AR48LS
- 741 and inventions
- Fixing the 42PF7520D
- Pioneer Powerbass
- 3rd order low pass filter table
- X-max problems?
- Tweaking the DAP D3109
- LS3/5A Inspiration
- Homage to Tannoy
- W6-1139 & TM1A compact 3 way design
- Tweaking the Mission 762
- Loudspeaker projects
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