Hi Jan,Originally Posted by snip
Wasn't me guv, mine is in bits in the draw with the other wrecked stuff!
Regards
Senior Member
Location: Sheffield
Posts: 442
Hi Jan,
Wasn't me guv, mine is in bits in the draw with the other wrecked stuff!
Regards
Member
Location: Bridgend, south Wales
Posts: 39
Hehe ok, another Chris M thenHi Jan,
Wasn't me guv, mine is in bits in the draw with the other wrecked stuff!
Regards, same screen name on another forum..
//J
Jan.
New Member
Location: Haarlem, The Netherlands
Posts: 18
I'm Martijn.
I've been reading a lot on this forum since I got myself a second hand 7510 last week. Now I'm about to mod my 7510 with mod 21 pt 1&2. I'm no technician and can't understand the circuit by just looking at it. Can somebody tell what exactly is the function of R11 and R14? What is the bridge between them supposed to do? In this thread the OP isn't very positive about it. Given that he has listened to his mods very carefully, I tend to believe him. But of course it's also a matter of taste. Can some one shed his light on this?
There are three other questions that came to my mind while inspecting the inner workings of my 7510 MKII.
1. Why are we supposed to replace EC8/9 220uF caps (that's what they are now in my unit) with 47uF caps? Again, I'm not a technician, just wondering why. EDIT: I suspect it has to do with the 220uF WIMA caps that are added earlier in the signal. Am I right?
2. Why shouldn't I bother with replacing EC6/7?
3. Why should cutting the CC1/2 bypass caps make a positive difference? They are there to diminish current ripple, right?
Thanks!
Site Owner/Administrator
Location: Wrexham, North Wales, UK
Posts: 110,537
I'm AudioAl'sArbiterForPISHANTO.
Hi Martijn,
Welcome to AoS
On your next visit, could you please pop into the Welcome area and say 'hello', telling us about your system and what music you like, as this is the required procedure for all new members joining our community.
Cheers!
Marco.
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
New Member
Location: Haarlem, The Netherlands
Posts: 18
I'm Martijn.
Will do, didn't know that!Hi Martijn,
Welcome to AoS
On your next visit, could you please pop into the Welcome area and say 'hello', telling us about your system and what music you like, as this is the required procedure for all new members joining our community.
Cheers!
Marco.
Site Owner/Administrator
Location: Wrexham, North Wales, UK
Posts: 110,537
I'm AudioAl'sArbiterForPISHANTO.
Nice one. Thanks for doing that, Martijn
During the registration process, did you not get this message?
Dear $username,
Thank you for registering at XXX...
Before we can activate your account you need to visit the following URL:
XXXX...
New registrations are manually authorised, and so it can take a few hours before your posting rights will be fully active.
Before posting in the main areas of the forum, please pop into the Welcome area and say 'hello', giving your proper first name, basic location, system details and something about your music tastes.
Marco.
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
New Member
Location: Haarlem, The Netherlands
Posts: 18
I'm Martijn.
I did, but I didn't read the whole message. My fault. I'm used to just clicking on the activation link.
Site Owner/Administrator
Location: Wrexham, North Wales, UK
Posts: 110,537
I'm AudioAl'sArbiterForPISHANTO.
Lol... You see, my boy, the fine details in life matter... Always read the small print!
Marco.
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
New Member
Location: Haarlem, The Netherlands
Posts: 18
I'm Martijn.
Does anyone know the answer to any of the questions I've asked?
New Member
Location: Haarlem, The Netherlands
Posts: 18
I'm Martijn.
Just finished mod 21. I'm very impressed. It definitely sounds better then my Cambridge Audio 640C trough my HD600 cans. Cleaner in the mids and less bright in the highs. I used Elna Silmic II 47uF/25V's to replace the four caps. I'm planning on upgrading the PSU and then I'll leave it alone (I hope).
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