Bottlehead Forum

Bottlehead Kits => Eros Tape => Topic started by: Doc B. on June 30, 2011, 01:59:54 PM

Title: Eros Tape Head Preamp Manual Corrections
Post by: Doc B. on June 30, 2011, 01:59:54 PM
This only concerns manuals before the one dated 6-30-11:

Page 21 - be sure to leave the body of the MJE5731A transistors sitting about 3/8" above the surface of the PC board.

Page 72 - before the existing first instruction on the page it should saye:

Insert the free ends of the resistors attached to terminal 16 and terminal 17 into the remaining OB pad and solder.

Page 76 - similarly, an additional instruction between the two existing instructions on the page should be:

Insert the free ends of the resistors attached to terminal 29 and terminal 30 into the remaining OB pad and solder.
Title: Re: Eros Tape Head Preamp Manual Corrections
Post by: mkontor on August 20, 2013, 08:55:28 PM
I found these errors:

On page 62, there is an error - it says to mount the resistor from T11 to T10 - it should say T12, as shown in the picture; this was my first mistake,  I followed the instructions then got an incorrect resistance check on that channel (see another post)

On page 63 of the instructions you show 2 pictures; the bottom one shows two components on each side that are not in any of the other pictures, nor are they mentioned in the instructions; these are
a cap from T11 and T12 and another from T4 to T5
Title: Re: Eros Tape Head Preamp Manual Corrections
Post by: mkontor on August 22, 2013, 09:19:28 PM
Thereis a minor error on page 76 - the heading says
the completed Eros PHONO preamp
Title: Re: Eros Tape Head Preamp Manual Corrections
Post by: Listens2tubes on January 15, 2014, 04:27:22 PM
Why does the bottom right picture on page 63 show the 220k ohm resistor across T11 and T12? As well as those caps don't show up on page 67. Is the lower pic on page 63 for the phono version?