NEW BAD PCB (Baby
Animal Dual) below. Available now.
JLM Baby Animal Mic Pre
kits and pricing below and
Reviews can be found here
- Overseas shipments do NOT
pay Australian GST (Goods and Services tax).
- Short form BA PCB kits
(BA is a transformer input single IC or Discrete opamp gain stage mic pre
giving 60dB of gain)
- JLM Baby Animal PCB & kit with all PCB parts
and 10k rev log pot
and 6 x gold sockets for 99 type opamp
except NO input transformer & NO Opamp
$70AUD + GST (roughly $58USD)
Parts List
JLM Baby Animal PCB & kit with all PCB parts
and 10k rev log pot
and OPA2604 IC except NO
input transformer $70AUD + GST (roughly $58USD)
Parts List
- Short form
BAD PCB kits
(BAD is a transformer input dual IC or dual Discrete opamp gain stage mic
pre giving 75dB of gain)
- JLM Baby Animal Dual PCB & kit with all PCB parts
and Dual 10k rev log pot
and 12 x gold sockets for 99 type opamp
except NO input transformer & NO Opamps
$90AUD + GST (roughly $75USD)
Parts List
JLM Baby Animal
Dual PCB & kit with all PCB parts
and Dual 10k rev log pot
and 2 x OPA2604 IC except NO
input transformer $90AUD + GST (roughly $75USD)
Parts List
Complete BA PCB kits
(BA is a transformer input single IC or Discrete opamp gain stage mic pre
giving 60dB of gain)
JLM Baby Animal PCB & kit with all needed PCB
parts and OPA2604 Opamp and JLM14 input transformer
$105AUD + GST (roughly $85USD)
Parts List
- JLM Baby Animal PCB & kit
with all needed PCB parts and OPA2604 Opamp and OEP262A3C input transformer
$125AUD + GST (roughly $100USD)
Parts List
- JLM Baby Animal PCB & kit
with all needed PCB parts and JLM99V Opamp and JLM14 input transformer
$165AUD + GST (roughly $135USD)
Parts List
- JLM Baby Animal PCB & kit
with all needed PCB parts and JLM99V Opamp and OEP262A3C input transformer
$185AUD + GST (roughly $150USD)
Parts List
- Complete
BAD PCB kits
(BAD is a transformer input dual IC or Discrete opamp gain stage mic pre
giving 75dB of gain)
JLM Baby Animal
Dual PCB & kit with all needed PCB
parts and OPA2604 Opamp and JLM14 input transformer
$130AUD + GST (roughly $105USD)
Parts List
- JLM Baby Animal Dual PCB & kit
with all needed PCB parts and OPA2604 Opamp and OEP262A3C input transformer
$150AUD + GST (roughly $120USD)
Parts List
- JLM Baby Animal Dual PCB & kit
with all needed PCB parts and JLM99V Opamp and JLM14 input transformer
$250AUD + GST (roughly $200USD)
Parts List
- JLM Baby Animal Dual PCB & kit
with all needed PCB parts and JLM99V Opamp and OEP262A3C input transformer
$270AUD + GST (roughly $215USD)
Parts List
- Everything kits with
Front panels or Full cases with every nut and bolt and wire needed
(other BA kits can be substituted in everything kits
by just adding or subtracting the difference in BA kit prices)
JLM BA2 with 2 x 99v & JLM14 kits +
2 x JLM111DC + 2 x DI
kits + 48v 380mA SMPS + Flat Front Panel Drilled
(Note 1)
$695AUD + GST (roughly $560USD)
Parts List
World Air mail $65AUD or ECI with
tracking $75AUD.
- JLM BA2 as above but with
Full case Drilled extruded front and back like
photo above $795AUD + GST (roughly $640USD)
Parts List
World Air Mail $110AUD or ECI with
tracking $165AUD.
- JLM BA4 with 4 x 99v &
JLM14 kits + 2 x DI kits + 48v 380mA SMPS + Flat Front Panel Drilled
(Note 1)
$895AUD + GST (roughly $720USD)
Parts List
World Air mail $50AUD or ECI with
tracking $75AUD.
- JLM BA4 as above but with
Full case Drilled extruded front and back like
photo below $995AUD + GST (roughly $800USD)
Parts List
World Air Mail $105AUD or ECI with
tracking $125AUD.
- Note 1. Flat Front Panels
have all holes fully milled out except the four holes that mount the front
to of the case as universal cases have these in slightly different places.
JLM Front Panels bolts to cases that use flat bolt on front panels like the
Par Metal
10-19082x case. Lay
original blank front panel over the JLM one and mark the four mounting holes
and drill them out to size. Best to cover JLM panel with 2" paper tape like
painters use as you can see through it still and protects against accidental
scratches. Par metal case will need the top and bottom lid spaced out with
washer if you are fitting JLM111DC output transformers.
- Parts
Hybrid opamp kit
$28AUD + GST (roughly $23USD)
- JLM99V
opamp
$69AUD + GST (roughly $56USD)
- New
JLM99v
+/-16v
opamp $69AUD + GST (roughly $56AUD)
- JLM Baby Animal PCB
$15AUD + GST (roughly $12USD) Double Sided Solder masked, plated hole PCB
with screen printed overlay and full bare boards tested.
- New JLM Baby Animal
Dual PCB
$20AUD + GST (roughly $16USD) Double Sided Solder masked, plated hole PCB
with screen printed overlay and full bare boards tested.
10k Reverse log pot
with 41 detents $10.00AUD + GST (roughly $8USD)
- JLM 1:4 Input
transformer
$40AUD + GST (roughly $32USD)
- OEP262A3C Input Transformer
$60AUD (roughly $48USD) (OEP262A3E with Mu Shield Can already fitted)
- JLM 1:1:1 DC
Gapped Output transformer $70AUD + GST (roughly $56USD) (Use for output for Neve
LO1166 or API2503)
- 48v 380mA 18W SMPS 90v to
250v world power supply
$40AUD + GST (roughly $32USD)
(Can run 4 to 8 BA mic pres depending on opamp types and number of DI's)
Photo
- 52V 2.2A 120W SMPS 90v to
250v world power supply
$100AUD + GST (roughly $80USD)
(Can run 24+ BA mic pres)
(Internal trim pot can set the volts from 48v
to 62v)(Procedure at
bottom of this page)
Photo
- BA2 & BA4 1
rack unit flat Front panel with laser text not drilled
(Note 2)
$55AUD + GST or $44USD
- Note 2. These Flat Front
Panels have all holes fully centre marked except for the four holes that
mount the front to of the case because universal cases have these in
slightly different places. JLM Front Panels bolts to cases that use flat
bolt on front panels like the Par Metal
10-19082x case. Lay original blank front panel over
the JLM one and mark the four mounting holes and drill them out to size.
Best to cover JLM panel with 2" paper tape like painters use as you can see
through it still and protects against accidental scratches. Centre punch
holes through tape and pilot drill all holes with a 2.5mm drill before
drilling them to size. Use a large size drill bit or de-burring tool to
clean the edges of the final holes.
PCB is 36mm (1.4") x 120mm
(4.7")
Links to some of the full
Forum threads
The terminal blocks have tongue and grooves which lock
them together on there sides. So 2 x 2 way can make the 4way and 3 x 3 way can
make the 9way. If you don't join them together they will sit uneven on the PCB.
Note and Errata on BA & BAD:
BA PCB with the date 09/07 has 2 x 0.1uF caps marked on it only
one needs to be fitted. One of the 0.1uF is where CL was on the old BA PCB but
is not CL. There is no CL position on the PCB so the CL cap needs to be mounted
under the PCB across RL on this version of the PCB.
Normal 8 pin DIP IC sockets for OPA2604AP &
NE5532AP
etc can be left on the PCB if PCB pins are used for the JLM99V
-
| Power supply |
Opamp fitted to baby animal PCB |
* 48v phantom power regulator |
# 33v to 47v opamp regulator |
| voltage |
|
* zener |
* 10k |
* BD681 |
# zener |
# 10k |
# BD681 |
| 62v |
JLM99v |
47v |
FITTED |
FITTED |
NF |
NF |
NF |
| 62v |
Hybrid, OPA2604, 990C, 992 , 993 |
47v |
FITTED |
FITTED |
47v |
FITTED |
FITTED |
| 62v |
NE5532AP |
47v |
FITTED |
FITTED |
36v |
FITTED |
FITTED |
| 62v |
2520, 1731, LM833 |
47v |
FITTED |
FITTED |
33v |
FITTED |
FITTED |
| 48v |
JLM99v, Hybrid, OPA2604, 990C, 992 , 993 |
NF |
NF |
NF |
NF |
NF |
NF |
| 48v |
NE5532AP |
NF |
NF |
NF |
36v |
FITTED |
FITTED |
| 48v |
2520, 1731, LM833 |
NF |
NF |
NF |
33v |
FITTED |
FITTED |
| When regulators are not fitted a
wire strap is needed between the BD681 Emitter (E on PCB) and
Collector (BD681 centre pad) |
If you can not open the PDF's below you will need
Acrobat reader 7.0.
Input Transformers the BABY Animal PCB can take directly are
- JLM1:4
(comes with 2 x
3mm bolts and 2 x plastic bushes which hold the transformer 1mm off the PCB)
- OEP A262A2E, A262A3E, A262A6E, A262A7E,
A262A3C
- Lundahl LL1538, LL1538XL, LL1576, LL1577, LL1578XL.
- Jensen JT-11K8-APC, JT-110K-HPC, JT-115-EPC,
JT-MB-CPCA
- Beyer 8mm threaded bolt types
- Cinemag CM-75101APC, CMMI-8-PCA
- Remember to mount all transformers with a gap of
about 1mm under them so any metal shields do NOT short out any of the PCB
Pads.
-
| Transformer |
Ratio |
Jumper |
Transformer Gain |
RL Fixed Impedance |
CL Fixed
Impedance |
RL Variable impedance |
CL Variable Impedance |
RZ |
CZ |
RPAD |
RG |
Total Gain |
| JLM14 |
1:4 |
NF |
12dB |
10k |
220pF |
2k2 + 50k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
61dB |
| OEP262A3C |
1:6.45 |
LOW |
17dB |
27k |
220pF |
10k + 100k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
66dB |
| OEP262A3C |
1:12.9 |
HIGH |
23dB |
100k |
220pF |
not tested |
390 to 440pF |
NF |
NF |
120R |
68R |
72dB |
| LL1538 & XL |
1:2.5 |
LOW |
9dB |
100k |
220pF |
3.9k + 50k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
57dB |
| LL1538 & XL |
1:5 |
HIGH |
15dB |
100k |
220pF |
15k + 100k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
64dB |
| LL1578 & XL |
1:5 |
LOW |
15dB |
100k |
220pF |
15k + 100k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
64dB |
| LL1578 & XL |
1:10 |
HIGH |
21dB |
220k |
220pF |
60k + 200k pot |
390 to 440pF |
NF |
NF |
120R |
68R |
70dB |
| To load the input for 50ohm mics (150ohm load)
use low ratio parts but fit ratio jumpers as HIGH
NF = Not Fitted to PCB |
| To make CL = 440pF all BA kits now have 2 x
220pF (One 220pF can be fitted to CL and the other to CZ with a
wire link across RZ. |
Total gain is for dip8 dual opamp IC's and 1.1"
opamps with 1:2 output transformer. If using 1.1" opamps with no output
transformers minus 6dB from total shown.
Adjusting voltage of large 52v 2.2A power supply
-
The
power supply come set to roughly 52v. With the fan set to run all the
time.
-
First check that the 115v/230v switch is set to match your mains voltage
-
To
adjust down to 48v or up to 62v a trim pot can be seen through the fan
slots and can be adjusted with a small screwdriver as shown in the below
photo.
-
If
you go over the 62v the over volts protection may cut in which will
require you to turn the trim pot back a bit and turn off the power
supply and let it discharge and then turn it back on again to finish
setting the voltage. Use a insulated screwdriver and make sure it is in
the plastic trim pot slot before turning on the power supply.
- If you are running
less than about 16 baby Animals from this power supply you can unplug
the fan from the internal PCB if you don't want any background noise.
- First make sure the
power supply is unplugged from the mains power and full discharged
- Slip a flat
screwdriver under the plastic end cover as shown
- Until cover pops
forward and screws are exposed.
- Once the 2 screws are
removed the Fan plug and voltage trim pot will be visible.
- Unplug the Fan plug
and reassemble.
- It is worth now
checking the voltage has not changed from the volts you set it to
earlier.
Just for clarity
The only thing the Deane Jensen 990 Design and mine share is the pinout
configuration. The JLM99V is more like a Neve Class A Preamp on major Steroids.
It is a pure path device with the signal path only travelling through three
transistor junctions. It has gain limited to about 60dB with no feedback
applied. When setup right the THD with feedback is 0.005% at normal operating
levels heading up to 0.5% 2nd Harmonic as its output swing reaches closer to the
power rails. It has a 1v DC offset on the output due to the -input of the opamp
being an emitter input. It runs best on +/-34v but can run on +/-24v.
JLM111DC Output transformer.
Can be used for Neve
LO1166 or API 2503 type DIY projects. The transformer is DC gapped and has 3
identical 150ohm windings that are trifilar wound. So can use as 1:1:1 or 1:2 or
2:1 applications. It is physically the same size as the LO1166 except the the
top terminal plate is narrower so it will fit on its side in 1 unit high racks
which have a 38mm internal height. Each winding has its connections opposite
each other and one side is marked Red+ and the other Yellow-.
- For 1:1 use any winding for primary and any other
winding for secondary.
- For 1:2 you could use winding 1 for primary and
wire +2 to -3 and take +3 & -2 as the secondary.
Capturing Audio without Injury
