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Thread: Celestion HF 1300 expert needed

  1. #51
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 447
    I'm Chris.

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    Thanks

    Another question - were the early HF1300s fitted with alnico magnets?

  2. #52
    Join Date: Feb 2008

    Location: Middlesex, UK

    Posts: 2,993
    I'm Alex.

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    Quote Originally Posted by bumpy View Post
    Thanks

    Another question - were the early HF1300s fitted with alnico magnets?
    Depends on what one means by early, the ones used in Ditton 10, Ditton 15, County etc. had a smaller ceramic magnet, and were lower impedance 4 Ohm, like these:

    https://images.duckduckgo.com/iu/?u=...4_ohms.jpg&f=1

    To me, the really interesting one is the HF1400, has a bigger magnet than any of the others, used in some BBC speakers and B&W DM3. I would like to obtain more information on them. I have a pair of DM3's and a spare pair of HF1400's. I am tempted to try the 1400's in my LS3/6's, I suspect that they would be a bit more sensitive, but that is easily adjusted using the taps on the autotransformer.
    Spendorman

  3. #53
    Join Date: Apr 2008

    Location: east yorkshire

    Posts: 504
    I'm steve.

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    Quote Originally Posted by spendorman View Post
    Depends on what one means by early, the ones used in Ditton 10, Ditton 15, County etc. had a smaller ceramic magnet, and were lower impedance 4 Ohm, like these:

    https://images.duckduckgo.com/iu/?u=...4_ohms.jpg&f=1

    To me, the really interesting one is the HF1400, has a bigger magnet than any of the others, used in some BBC speakers and B&W DM3. I would like to obtain more information on them. I have a pair of DM3's and a spare pair of HF1400's. I am tempted to try the 1400's in my LS3/6's, I suspect that they would be a bit more sensitive, but that is easily adjusted using the taps on the autotransformer.
    I have a pair of very large magnet version in a LS5/1a... where these the 1400 ?
    collector and DIY user of old british triode valves

    Open baffles / single ended diy px4 and px25 valve amps

  4. #54
    Join Date: Feb 2008

    Location: Middlesex, UK

    Posts: 2,993
    I'm Alex.

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    Just looking here

    http://www.markhennessy.co.uk/rogers/others.htm

    Seems like the LS5/5 used the HF1400

    Yours, seem to have 2 x HF1300
    Spendorman

  5. #55
    Join Date: Apr 2008

    Location: east yorkshire

    Posts: 504
    I'm steve.

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    Quote Originally Posted by spendorman View Post
    Just looking here

    http://www.markhennessy.co.uk/rogers/others.htm

    Seems like the LS5/5 used the HF1400

    Yours, seem to have 2 x HF1300
    Thanks for linking that it's an interesting read
    The difference in size and efficiency is staggering between the 70's versions I have and these early sixtys bbc 'specials'
    I also have a pair of the gec versions which sound very nice and are still quite efficient
    Thanks
    collector and DIY user of old british triode valves

    Open baffles / single ended diy px4 and px25 valve amps

  6. #56
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,517
    I'm Geoff.

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    Yes. Those were the days. None of yer nasty ferrofluid nonsense back then .

    Even by modern standards, the HF1300 tweeter is quite remarkable. Its ability to show transparency and render detail through the upper mid and into the treble region is outstanding. It reproduces ambience superbly.

    It can show a touch of hardness and is tonally awkward to integrate with other drivers.

    I built these around 1980, they worked rather well. 6 1/2 inch Audax bass/mid if I recall.



    The HF1300 tweeters came from Denys Trickett. Anybody remember him?
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  7. #57
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 447
    I'm Chris.

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    I suppose my question should have been "Were HF1300s ever supplied with alnico magnets?"

  8. #58
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 28,517
    I'm Geoff.

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    Quote Originally Posted by bumpy View Post
    I suppose my question should have been "Were HF1300s ever supplied with alnico magnets?"
    Yes. I have a 16 ohm pair.
    Mr. Tact!

    Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!

  9. #59
    Join Date: Feb 2008

    Location: Middlesex, UK

    Posts: 2,993
    I'm Alex.

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    "Denys Trickett. Anybody remember him?"

    Yes, never met him though, remember that one had to go up stairs to his place.
    Spendorman

  10. #60
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 447
    I'm Chris.

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    Quote Originally Posted by walpurgis View Post
    Yes. I have a 16 ohm pair.
    Cool.
    Is there any way of knowing?

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