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Interesting- Quad ESL63 vs SimPole OB March 2011 https://www.zelfbouwaudio.nl/forum/viewtopic.php?f=3&t=13334 Visaton FRS8 https://solen.ca/en/products/frs808 Speaka 150/170 (na) https://www.rapidonline.com/speaka-150-170-loudspeaker-10in--55-3605

for $20 for the salvageable parts is good. Tweeters- if you sold them for half of what they are asking that's pretty good, if you sold them for $40 you doubled your money. (But who's looking for tweeters?) https://www.ebay.com/itm/362767673669?hash=item5476a36945:g:lC8AAOSwTTFhctzX You could...

from page 31, 3 kHz crossover point https://starin.info/Product%20Info/Bosch%20-%20EV/Archive/University%20Sound/1989%20Catalog%20-%20University%20Sound.pdf ---- If figuring out the wiring for the drivers is too much... I would build this: figure 6, 6000 hz crossover tweeter ST350 with an...

If the tweeter works this small bare jumper (between the red & green black) might be the (pictorial 7) bottom right connection off of the variable 75 ohm resistor. What does the pcb side of the STR look like? more info but no crossover http://starin.info/Product Info/Bosch -...

Here's a speaker with 6 woofers, totally different but just to give an idea. Curt Campbell Stentorians http://speakerdesignworks.com/NS6project_4.html looks like you have this, Electrovoice Tweeter Protection Cct https://products.electrovoice.com/binary/STR Service.pdf I would figure out...

Here's some info on the st350b tweeter http://kinotechnik.edis.at/pages/diyaudio/BEM/EV_ST350/EV_ST350B.pdf If you could measure the coils (need LCR meter inductance) or at least physical measurement for a guesstimate...

on thee bay https://www.ebay.com/itm/154742245105?hash=item24075b46f1:g:B9YAAOSwuoZhs0gB Maybe the seller could take pictures or provide some information. -I looked back and saw that you are trying to get them running. Maybe if you found another similar speaker with a crossover diagram to get...

Here's some info on Braun / ADS http://sportsbil.com/ads/l-1590-brochure.pdf I don't see the 1590 II crossover http://sportsbil.com/ads/xoverschematic.pdf from http://sportsbil.com/ads/ from https://speakerholic.blogspot.com check this out...

some old Lineaum Dipole Tweeter projects- https://www.cross-spectrum.com/audio/myspeakerproject/ http://www.diysubwoofers.org/projects/home/wedding/ crossover? http://www.htguide.com/forum/showthread.php?32447-First-Project-RS100-TMM-Nearfield

Nice ! more LX5 mods (YMMV) Modifications to Genexxa Pro LX5 Loudspeakers |    The Audio Standard https://audiokarma.org/forums/index.php?threads/optimus-lx-5-cheap-modifications.556649/ http://www.onefallinghope.com/diy/diy-optimus-rca-lx-5-speaker-mods-on-the-cheap/

Nice ! more LX5 mods (YMMV) Modifications to Genexxa Pro LX5 Loudspeakers |    The Audio Standard https://audiokarma.org/forums/index.php?threads/optimus-lx-5-cheap-modifications.556649/ http://www.onefallinghope.com/diy/diy-optimus-rca-lx-5-speaker-mods-on-the-cheap/

from Parts Express Linaeum Ribbon and Fatail Pro 5FE120 woofer https://techtalk.parts-express.com/forum/tech-talk-forum/68538-design-using-the-linaeum-ribbon

here is a Seas speaker from China, the crossover is @ 2200-2300hz, you could try this woofer with Dennis Murphy's Lineaum tweeter crossover-which is around 2200 hz and play with it. http://www.hifidiy.net/index.php?s=/home/marticle/detail/id/9557.html...

Radio Shack LX550 (third generation LX5) Dennis Murphy Revised Crossover for the Radio Shack LX550 (murphyblaster.com) Another replacement woofer 5.2" Mid Bass for Radio Shack, Optimus LX5, LX5II, Pro X88AV, Optimus 77, RCA Linaeum, W-LX5 (simplyspeakers.com)

not exact, but for inspiration: Eric Wallin's Internet Homepage (archive.org)

found this: Improving the Sony SS-CS5 | AVS Forum https://www.avsforum.com/threads/improving-the-sony-ss-cs5.3068362/#lg=thread-3068362&slide=1 Making them look big and wide, reminds of the Stance speaker by Wolf

more https://web.archive.org/web/20021105130128/http://www.diyzone.net/diy/references/tube/ https://web.archive.org/web/20030217190933/http://www.machmat.com/schema/index.htm

lots here: http://home.kpn.nl/a.van.waarde/id2.htm

here's some links, http://www.6v6power.ru/inf/Amplifier/ http://tomo.fine.to/V.World/gallery.html http://skarabo.net/sid-2.htm http://fonar.com.pl/a_index.htm https://robrobinette.com/How_Amps_Work.htm http://www.preservationsound.com/wp-content/uploads/...

Hello, this is my first post. I've got four A3830 transformers. specs show 60 mA, for 1/2 winding, 20 watts Stancor Catalog p 5b & 29b http://www.earlytelevision.org/pdf/Stancor61.pdf I built the following. for 4 ohm PP 6V6 "Quality Amplifier for TV Sound, Radio & TV News, May 1951, p.44...