Cali76 power issue????

Discussion in 'Effects [BG]' started by mrwood4, Dec 12, 2014.

  1. mrwood4

    mrwood4 Supporting Member

    Apr 17, 2014
    Southern Illinois
    I did search the existing threads, but didn't see anything related to my issue.
    I recently moved my Cali 76-tx-l to a rack drawer. I was powering it with the adaptor but wanted to stop using the adapter. I bought a pedal power iso5 to use the 18v output for the Cali. When I plugged it in the most extreme compression indicator light (31 db) lights up and stays lit. The compressor does not respond to playing and passes no signal to my preamp, and no other lights except the power light work. I thought the iso5 was bad. I returned it and tried a second iso5 and got the same issue. According to origin effects a Cali-tx draws 64mA at 18volts. The 18v output of the iso5 supplied 100mA, so it should work fine. If I use a 9v output or the adaptor everything is fine. Anyone with a Cali-tx experience this? Anyone using an iso5 18v output without an issue??? Thanks for any help!
  2. Roland GR 88

    Roland GR 88 Commercial User

    Sep 16, 2013
    Ontario Canada
    Retail store manager
    Are you using the d.I. output when using the 18v ? If it doesn't detect enough voltage it will bypass the transformer and the line/d.i. output will be muted. The amp. output will still work however. They recommend 200ma for "optimal startup".
    Last edited: Dec 13, 2014
  3. bongomania

    bongomania Supporting Member Commercial User

    Oct 17, 2005
    PDX, OR
    owner, OVNIFX and OVNILabs
    I've been using the ISO5 with mine, but I have to admit I haven't used both outputs at once yet, so let me test that today and see.
  4. mrwood4

    mrwood4 Supporting Member

    Apr 17, 2014
    Southern Illinois
    I've been using the "amp"output. I didn't see anything about the 200ma, but that could be the problem. I was going to get one of the voltage doubling cables for the iso5 and try using two 9v outputs together and see if it makes a difference also.
  5. Origin Effects

    Origin Effects Guest

    Feb 1, 2012
    Oxford, UK
    Designer @ Origin Effects & Keats Audio
    Hi mrwood4. I'm very concerned to hear about the troubles you've been having. Please accept my sincerest apologies for the inconvenience caused.

    Over the last two years, we've had a couple of Cali76 units come back with similar symptoms. However, in both these cases the customers had taken their units to a R****Shack store to purchase a supply. In both instances the clerk had provided an 18V "AC" (not DC regulated) supply which had then fried a few components in the Cali76. Unfortunately, AC supplies usually output much higher voltages than their ratings suggest! Anyway, I understand that your case is a little different as you have carefully selected purpose-built supplies, and so I can't immediately explain the cause of the fault!

    I think it would be best for your unit to come back here for a full check-up. I'll get it turned around inside 24 hours, from the moment it arrives. Should it arrive during the Christmas break, I'll find some time to get over to the office to carry out the work. We're a small company and I can't help taking these things incredibly personally, my first instinct is to drop everything and get to bottom of the issue! Please email me at simon(at) We'll get this sorted for you!

    All the best, Simon.
    Last edited: Dec 14, 2014
  6. eveilleu


    Oct 30, 2013
    Montreal, Qc
    The problem might also be with the iso-5. I had an amazing pedal die on me last week. Turned out the power cable between my dc8 and amazing pedal was faulty. Freaked me out and the builder offered to look at it.. Before mailing it i played with the power and bingo fixed!
  7. ddnidd1

    ddnidd1 Supporting Member

    I contacted Origin awhile back re: power requirements for the transformer version. Here is their reply:

    "The unit will work at 100mA but the result might be that it will make a zipping sound on boot up (due to not enough current). It could be that it may function ok, but could then overwork the psu, thus reducing it’s lifespan (eventually possible resulting in it failing). It’s actual draw is just under 100mA, but we recommend double this mA rating for optimum use."
    Last edited: Dec 14, 2014
  8. Origin Effects

    Origin Effects Guest

    Feb 1, 2012
    Oxford, UK
    Designer @ Origin Effects & Keats Audio
    I'd like to clear this point up. The Cali76-TX, Cali76-TX-L, TX-P & TX-LP, all take a jolt of current when the supply is initially connected. This is known as an in-rush current. This is normal for all equipment due to the capacitors used in the power supply circuitry. The transformer equipped Cali76 pedals use relatively large supply caps compared to many pedal designs. The issue with small regulated supplies is that they are current limited. This means that as the initial jolt of current is taken by the pedal, that the supply detects this, shutsdown, waits and restarts... several times, until the capacitors in the Cali76 supply circuitry are fully charged.

    So even though the pedal may run on 64mA (Cali76-TX), it will start-up in a cleaner manner when used with a supply rated at 200mA or so, as this supply can meet the demands of the in-rush current... The 100mA supply will result in a very short but "stuttered" start-up characteristic, which results in a brief fluttering sound as a relay switches on & off. Therefore we recommend that the supply with the greater current rating is used to avoid unnecessary operation of the relay, though in reality this is unlikely to cause any problem.

    The problem posted on this thread is unrelated, and I can only speculate on the cause. I'd prefer to discuss this with the owner of the pedal to get a more complete picture of things.
    Last edited: Dec 14, 2014
  9. mrwood4

    mrwood4 Supporting Member

    Apr 17, 2014
    Southern Illinois
    Thank you Simon! Yes i'll send you an email right away. Thank you for your concern regarding my cali76. Amazing customer service!
    Bassman_1988 and nshuman like this.
  10. willsellout

    willsellout I apologize in advance. Supporting Member

    Aug 13, 2002
    Fort Wayne, IN
    Reviving a zombie thread. I have a Cali76 TX-L coming and I am starting to make progress towards a new pedalboard. Which power supply are you guys using? The only power supply that seems to fit the Cali's needs are the Strymon Zuma. everything else is 100ma.


  11. Jonny5bass


    May 3, 2011
    Seattle, WA
    I bought a Dunlop one off flea bay for pretty cheap. It matched the recommended specs for 18v and I haven't had any problems.
  12. mrwood4

    mrwood4 Supporting Member

    Apr 17, 2014
    Southern Illinois
    I had my Cali in a rackmount shelf, so at that time I was using the dedicated 18v power supply. The MXR iso brick has 18v options with enough juice to run the Cali.
  13. ddnidd1

    ddnidd1 Supporting Member

  14. JGR

    JGR The "G" is for Gustav Commercial User

    Jun 29, 2006
    President, CEO, CFO, CIO, Chief Engineer, Technician, Janitor - Reiner Amplification
    I've been using a CIOKS Schizo which is a really nice unit.
    willsellout likes this.
  15. Wfrance3

    Wfrance3 Supporting Member

    May 29, 2014
    Tulsa, OK
    Only sort of related, but does the Cali 76 cb power up "off"? All pedalsthst I have owned remember whether they were of or in when you power them up. The Cali is always off. - would like to fix this if there's a jumper or something I could change.
    Al Krow likes this.
  16. ddnidd1

    ddnidd1 Supporting Member

    Essentially there are two basic kinds of foot switches (circuits) used in pedals.

    One is a mechanical switch that latches and these have a relatively loud click when you push them.They don't change state when you power off the pedal.

    The other type is a momentary switch which controls an electronic circuit that performs the switching function.These can change state when you power off the pedal.

    I seriously doubt there's any type of jumper option in the Cali76 that controls this function and there's no mention of one in the manual.
    Wfrance3 and Al Krow like this.
  17. Wfrance3

    Wfrance3 Supporting Member

    May 29, 2014
    Tulsa, OK
    Thank you. I was imagining that there was not. I looked thru the manual as well. There are jumpers for other things, so was thinking there might have been one for this as well. Thanks for confirming!!
  18. Al Krow

    Al Krow

    Jan 15, 2018
    Digging up this thread if I may.

    I'm experiencing the opposite issue with my Cali CB i.e. it always powers up "on" even if it's been switched off (i.e. onto by-pass) before powering down.

    Does that sound like a faulty unit?
  19. Wfrance3

    Wfrance3 Supporting Member

    May 29, 2014
    Tulsa, OK
    I don't have my Cali any longer, but If it is defective, by my measure, it's defective in a good way!!

    ('long as that's the only thing that it does out of the norm for the pedal..)