Diegol Posted September 4, 2019 Share Posted September 4, 2019 1 hour ago, mwhouston said: Do you have an image of the drivers? Or have I missed something? Hi ! The drivers will be the Apogee original ones. A 6 1/2" Vifa p17wj and the ribbon, the 24" long version. The stereo subs will be a pair of Peeerless 10" CSX on sealed cabinets. Link to comment Share on other sites More sharing options...
Batty Posted September 4, 2019 Share Posted September 4, 2019 New toys arrived today: Hakko FX-888D soldering station and antistat mat, plus Elekit TU-8500 Valve pre amplifier kit. 2 Link to comment Share on other sites More sharing options...
Guest Muon N' Posted September 4, 2019 Share Posted September 4, 2019 (edited) On 02/09/2019 at 8:49 PM, Muon N' said: Got a bunch of bits to do more on my own player, It's my own so more messy than where I do friends gear So replaced the 79xx and 78xx regs with Sparko discrete regs, replaced the PS filter and decoupling caps too, but left a couple out next to the regs as there was just not enough room for them, the regs have a 10uf output cap on board so was OK to do so. Did have a snag where I had put a Cerafine in backwards (getting too old for this stuff) and it popped on power up Edit: It's noticeably quieter, and letting more music information through, sounds less constrained. Did a few more cap replacements, although the SMD .1uf decoupling caps around the TDA chip are glued on as well as soldered, so will leave that for another day. Singing pretty nice now No longer miss my record player and records. Edited September 4, 2019 by Muon N' Link to comment Share on other sites More sharing options...
Guest Muon N' Posted September 4, 2019 Share Posted September 4, 2019 (edited) Hmm...Player is getting hot and not reading many CDs including commercial ones, taking lots of tries just to get one to show tracks. Damn! have to work this out! Edit: Damn, will have to remove the CDM2 Mech' to get to the servo PCB. Edited September 4, 2019 by Muon N' Link to comment Share on other sites More sharing options...
Batty Posted September 5, 2019 Share Posted September 5, 2019 (edited) Next project is the valve pre amp, looking to buy a couple of 12AU7 ECC82 valves that are reasonable cost (around $200 for the pair) what sources are there in Aus? Edited September 5, 2019 by Batty 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 4 minutes ago, Batty said: Next project is the valve pre amp, looking to but a couple of 12AU7 ECC82 valves that are reasonable cost (around $200 for the pair) what sources are there in Aus? Expensive for 12AU7s, which ones are they? Link to comment Share on other sites More sharing options...
Batty Posted September 5, 2019 Share Posted September 5, 2019 (edited) Looking to purchase, no idea where from though and have no idea on prices, only bought 2nd hand ECC88 before. Would you recommend upgrading the valve bases to ceramic from plastic? Edited September 5, 2019 by Batty 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 Done more work on this 12AX7 preamp with cathode follower dropping the gain some more which has now made the amp very quiet. Still sounds good and plenty of gain. These tube rings from Evatco are much thicker then those from years back and a reasonable price. Also add name plate - “Lagoon 3”. 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 2 minutes ago, Batty said: Looking to purchase, no idea where from though and have no idea on prices, only bought 2nd hand ECC88 before. Would you recommend upgrading the valve bases to ceramic from plastic? If you have not used Evatco in QLD they have a good range of tube based components. If you can go for ceramic, not expensive, looks good. I’ve used both and just depends on what sound/look I want. If looking for an easy two stage preamp I would suggest the one I just built. If interested PM me and I’ll send the schematic. The preamp section has had some serious changes (I made) but in the end ( and even right from first turn on) it sounds very good. Link to comment Share on other sites More sharing options...
aussievintage Posted September 5, 2019 Share Posted September 5, 2019 13 minutes ago, Batty said: Next project is the valve pre amp, looking to buy a couple of 12AU7 ECC82 valves that are reasonable cost (around $200 for the pair) what sources are there in Aus? I would not spend that much. A few of quick examples. https://www.thevalvestore.com.au/13-12au7-ecc82 https://www.tubeaudio.com.au/12au7-ecc82/ https://www.evatco.com.au/audio-tubes/preamp-tubes/12au7-tubes/ Link to comment Share on other sites More sharing options...
Batty Posted September 5, 2019 Share Posted September 5, 2019 Bayira 8500 valve pre amp https://www.tubesoundaudio.com.au/Elekit-TU-8500.asp Link to comment Share on other sites More sharing options...
aussievintage Posted September 5, 2019 Share Posted September 5, 2019 3 minutes ago, Batty said: Bayira 8500 valve pre amp https://www.tubesoundaudio.com.au/Elekit-TU-8500.asp For internal sockets with low heat, there is no advantage to ceramic. Link to comment Share on other sites More sharing options...
eman Posted September 5, 2019 Share Posted September 5, 2019 2 hours ago, mwhouston said: Done more work on this 12AX7 preamp with cathode follower dropping the gain some more which has now made the amp very quiet. Still sounds good and plenty of gain. These tube rings from Evatco are much thicker then those from years back and a reasonable price. Also add name plate - “Lagoon 3”. Hi. Wondering if you've heard the Psvane 12ax7 Premium. Seem to cost as much as decent vintage @ $100 pair. The Shuguang 50 year Treasures range does not seem to cover 12ax7. 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 3 minutes ago, eman said: Hi. Wondering if you've heard the Psvane 12ax7 Premium. Seem to cost as much as decent vintage @ $100 pair. The Shuguang 50 year Treasures range does not seem to cover 12ax7. Psvane 12AU7s only. 1 Link to comment Share on other sites More sharing options...
eman Posted September 5, 2019 Share Posted September 5, 2019 34 minutes ago, mwhouston said: Psvane 12AU7s only. Any comparison experience with vintage of the same cost ? 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 2 hours ago, eman said: Any comparison experience with vintage of the same cost ? Can’t help. 1 Link to comment Share on other sites More sharing options...
sfdoddsy Posted September 5, 2019 Share Posted September 5, 2019 (edited) I can't quite believe it, but I appear to be going to the dark side. I just bought a full range driver to experiment with in an open baffle. Edited September 5, 2019 by sfdoddsy 1 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 1 minute ago, sfdoddsy said: I can't quite believe it, but I appear to be going to the dark side. I just bought a full range driver to experiment with in an open baffle. Which one. Link to comment Share on other sites More sharing options...
sfdoddsy Posted September 5, 2019 Share Posted September 5, 2019 For aesthetic and curiosity reasons I've ordered a MarkAudio Alpair 11ms. I was also pondering the Tangband 1808, but I have an exisiting baffle with a cutout to suit the 11ms so it make sense (kind of) to use that. The plan is to whack it into the smallish folded baffle and cross to (existing) seperate sealed bass units as low as seems sensible, with a MiniDSP to do the crossover and any EQ necessary on the 11ms and overall. It's quite the change from my last OB which was a staggered baffle 4 way using BG Neo 10 and Neo3 ribbons in full dipole mode. 2 Link to comment Share on other sites More sharing options...
mwhouston Posted September 5, 2019 Share Posted September 5, 2019 49 minutes ago, sfdoddsy said: For aesthetic and curiosity reasons I've ordered a MarkAudio Alpair 11ms. I was also pondering the Tangband 1808, but I have an exisiting baffle with a cutout to suit the 11ms so it make sense (kind of) to use that. The plan is to whack it into the smallish folded baffle and cross to (existing) seperate sealed bass units as low as seems sensible, with a MiniDSP to do the crossover and any EQ necessary on the 11ms and overall. It's quite the change from my last OB which was a staggered baffle 4 way using BG Neo 10 and Neo3 ribbons in full dipole mode. Driver looks good.I have some boxes that the 8” driver 12p I think. Love them. Link to comment Share on other sites More sharing options...
Batty Posted September 7, 2019 Share Posted September 7, 2019 Progress now 3 Link to comment Share on other sites More sharing options...
Batty Posted September 8, 2019 Share Posted September 8, 2019 Pre amp built and tried this morning, sound is quiet and very distorted on all inputs, any ideas? Link to comment Share on other sites More sharing options...
aussievintage Posted September 8, 2019 Share Posted September 8, 2019 7 minutes ago, Batty said: Pre amp built and tried this morning, sound is quiet and very distorted on all inputs, any ideas? Check the power supply first. Nothing works well without correct power. Link to comment Share on other sites More sharing options...
mwhouston Posted September 8, 2019 Share Posted September 8, 2019 Output shorted. Link to comment Share on other sites More sharing options...
Batty Posted September 8, 2019 Share Posted September 8, 2019 There is supposed to be 60v on the anode, looking at 21v Link to comment Share on other sites More sharing options...
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