J.B. Sound Industries Pty. Ltd.: J.B. Broadcast Equipment.
Our Broadcast Equipment
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1U Rack Mount, Headphone amplifier.
1U Rack Mount, Line Limiting amplifier LL-1c (Mono or Stereo),
these have the same specifications as our EuroCard Line Limiter LL-1(pdf).
3U Rack Mount, RF Remote Control.
4U Rack Mount, News Console.
Rack Mount, Custom Units, to suit your requirements.
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Automation using ASS-4 up to 4 inputs with switching
on program fail and stop/rewind for VCR for overnight programs.
Our Standard EuroCards from the left:
Auto Source Selector ASS-4.
Auto Rewind AR-4 this goes with above as a pair.
Program Fail Alarm PFA-3(pdf) three units.
Transistor Interface TI-16 this interfaces between
the CMOS switching levels and the Relays providing both constant and pulse outputs.
Space for a second TI-16 for expansion.
This is used between the PFA-3 & the E-RE8 Cards.
E-RE8(pdf) three units.
Regulated Power Supply RPS-6(pdf)
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Bridging Dual Isolation Transformer & Pad (pdf) these transformers have an impedance of 10k ohms and a response of 20Hz to 20kHz, and are available in Mono or Stereo (independent 2 channel).
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Building Blocks (various, a small selection listed below).
Dual 15V AC Supply 6VA T2 "Open Case"
Dual 24V/48V Relay.
External Intercom Interface with drop out timer.
Relay RE1 "Open Case" (pdf)
Relay as above with PNP or NPN Transistor Driver, gain better than 250"Open Case"
Split Rail Rectifier (for T2) "Open Case"
Telephone Lock Out Relay "Open Case"
Console Modules (various to special order).
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For connecting unbalanced outputs to Professional Balanced Stereo Systems, you need a Balancing Amplifier here are THREE models to choose from, DBA-1-xx, is mounted internally and will not suit all units but DBA-2 is mounted externally in its own case and will suit all systems another Compact Self Powered Balancing Amplifier is our Stereo Satellite Interface and this unit will suit all systems.
Our T3 or T4 compact power supplies can power a number of DBA-2 Balancing Amplifiers if Console Power is unavailable.
Dual Balancing Amplifier (domestic to broadcast DBA-xx\1) (pdf), for internal or special case, also broadcast to domestic.
Dual Balancing Amplifier (domestic to broadcast DBA-2) (pdf), variable gain (preset) also broadcast to domestic.
Stereo Satellite Interface & Mono Satellite Interface (pdf). this balancing amplifier has a fixed gain of 18db
for -10db to +8dbm/u (or -1dbm) 240V operated with Optus Satellite connection Approved.
T3 Dual AC-DC Power Supply (pdf)
T4 Dual AC-DC Power Supply (pdf)
Note that the case used for the T4 Dual AC-DC Power Supply is used on many of our small items,
see the respective data sheets (in pdf format).
Dual Isolation Transformer & Variable Pad(pdf) these have Austel approved Transformers and are available with fixed pads.
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EuroCard 3 Channel Composite Video Amplifier (5mHz bandwidth).
EuroCard 3 Channel Program Fail Alarm(pdf)see pic. above.
EuroCard 4 Channel Active Mixer, only 20mm Wide.
EuroCard Amplified VU Meter (4 models).
EuroCard Audio Distribution Amplifier DA-6(pdf) DC coupled, with a separate amplifier for each of the 6 outputs. see pic. below.
EuroCard Audio Monitor Amplifier E-GPA-1.5 & E-GPA-1.5-H (pdf) 
These are ideal for OB line monitoring or News Room work station,
as they are small with inbuilt speaker, the "H" option is for headphone socket with internal speaker muting,
they have electronic muting, and options for external speaker.
EuroCard Audio Monitor Amplifier E-GPA-10 (pdf)
These are ideal for small Studio Monitors with 10W RMS output into 3.5 ohms and electronic muting, also available with 100V line option, ideal for small Station Monitoring.
To power ceiling diffusers, and office speakers.
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EuroCard Delay Control, MDC allows selection of direct or delay program with Jingle or Catch Up mode.
Our Standard EuroCards from the left:
DA-6(pdf) 4 cards, (note that these were supplied at different times, at the time of change from the original DA-6 to the DA-6/1.
E-RE8(pdf) 2 cards, (Studio Matrix) each card handles ALL the switching for 1 Studio (Audio & Control of delay).
Space for expansion.
EuroCard Program Selector SS-1 (pdf) Used here to select different points for monitoring.
EuroCard Delay Control, MDC
E-RE8(pdf) 1 card, this handles ALL the Delay Switching for either mode (Jingle or Catch Up)
EuroCard Line Limiter LL-1(pdf) 2 cards, with control link for Stereo Tracking.
Regulated Power Supply RPS-6(pdf)
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EuroCard Extender Board (pdf) 
250mm Long with 150mm Long support arm to support the board under test, 2 units are available,
1 with rows a+b on the 41612 connectors and 1 with rows a+c on the 41612 connectors.
EuroCard L & R to L, R & M .
EuroCard Line Limiter (pdf) high speed, dual time constant, brick wall. With Dual Time Constant, under linear transfer the audio sounds clean and natural all the time, while under compression it still sounds clean and natural but louder.
As of February 2003 these limiters had been on air for over 2 Years, in B-FM Studios (linked Stereo), & 2RPH Studios (Mono).
For on air use the Limiters are set for 10db expansion, leaving 20db for compression, they can be set for peak limiting as required for feeding ISDN lines or other digital links, a very versatile & cost effective unit.
Other uses are recording limiters, or automatic level control for external sources (BBC etc.).
AFTER A BREAK AND ENTER AT HOMEBUSH BAY, OUR LIMITERS WERE USED TO LIMIT PEAK MODULATION AT AN AM SITE.
EuroCard Program Selector SS-1 (pdf) see pic. above.
EuroCard Relay Board E-RE8(pdf) (8 dual pole relays) individually operated plus all call with release spike clamping, see pic. above.
EuroCard Static Mixer (2 models).
EuroCard Tone Filter (25Hz or 1.3kHz) & detector set.
EuroCard Transistor Interface TI-16 16 individual relay drivers for static and pulse driving of relays, see pic. above.
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EuroModule Dual Rail 24V regulated power supply RPS-6(pdf) short circuit proof 2A available from each supply, see pic. above.
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Hybrid Auto Answer Module.
Intercom Microphone (Balanced) (pdf).
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Mic Signage, (pdf) not only can J.B. Sound Industries Pty. Ltd. supply the Best Interview Microphones
We can supply all your cables and Signage.
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Mobile Phone Interface (pdf)
Our Journalist is seen here with the Denon DN-F20R Flash Card Recorder sending a story back to the News Room using our Mobile Phone Interface. These Mobile Phone Interfaces will work with any field recorder having line out connections.
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Stereo Satellite Interface & Mono Satellite Interface (pdf). this balancing amplifier has a fixed gain of 18db for -10db to +8dbm/u (or -1dbm) 240V operated with Optus Satellite connection Approved.
T3 Dual AC-DC Power Supply (pdf)
T4 Dual AC-DC Power Supply (pdf)
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Patch Cords shown here is a 2.5m, Bantam RTS to Bantam RTS, we can make custom leads to any length with any type of connector ie. Bantam RTS to 1/4" RTS, 1/4" RTS to XL-3-xx etc. etc..
With Studio Installation, we can provide all the little extras to maintain a neat installation.
The White duct shown on the right rear of this rack is our Power Rail a full rack height mains power rail, with sockets at 88mm Cts. (2U) or high density at 65mm Cts. or a combination of both.
The full height cable tray on the left rear is to hold the Audio Cables.
2U Tray (3 in this rack) these are only 2U high overall, (not like some 2U shelves that require 2 and a bit units to mount) these trays are to support domestic Radio Receivers, Satellite Receivers etc.
INTERCOM
The left Intercom Panel is an STR DOOR STATION (with 1 button to call ALL Studios and the right Intercom Panel is a J.B. ICM-6 this is mounted at Reception and is currently connected to the external Door Station and fitted with a Door Open button and is capable of communicating with 5 extra points, (requires 1 x 10 pair, rear entry) fully balanced.
The ICM-6 (and Studio Buttons) can be connected to the Door Open Timer a mains power supply providing 12V AC or DC to release a door lock, while the STR DOOR STATION can be connected to the Intercom to Studio Interface providing a timed connection to the All Studios (up to 5) with Timed Call Light.
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Broadcast Notes:
"Building Block": These items are designed to be incorporated into other equipment or they may be used as a stand-alone item.
"Open Case": This design is a rectangular plastic box, with the PCB becoming the lid of the case, this design is for mounting inside a console desk or similar & mounting is available via holes drilled in the base or sides of the plastic box.
Standard colours for all EuroCards/Modules and Rack Cases is Natural Satin Anodized aluminium, engraved with Black Filling AND Black Satin Anodized aluminium, engraved with White Filling, these colours will match most Broadcast Racks. Other colour combinations made to order, Powder Coating & Silk Screening available.
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Contact J.B. Sound Industries Pty. Ltd.