diff --git a/src/App.css b/src/App.css
index 2e0c56d3..de3d8296 100644
--- a/src/App.css
+++ b/src/App.css
@@ -391,6 +391,16 @@ aside .description {
   background-color: #3a2a1a !important;
 }
 
+.dndnode.filters {
+  border-left: 4px solid #20c997 !important;
+  background-color: #1a3a2f !important;
+}
+
+.dndnode.others {
+  border-left: 4px solid #ffc107 !important;
+  background-color: #3a3a1a !important;
+}
+
 .dndnode.input {
   border-left: 4px solid #28a745 !important;
   background-color: #1a2f1a !important;
diff --git a/src/Sidebar.jsx b/src/Sidebar.jsx
index 1893d19a..93bcfb0a 100644
--- a/src/Sidebar.jsx
+++ b/src/Sidebar.jsx
@@ -32,6 +32,8 @@ export default () => {
       'Output': 'dndnode output',
       'Processing': 'dndnode processing',
       'Math': 'dndnode math',
+      'Others': 'dndnode others',
+      'Filters': 'dndnode filters',
       'Control': 'dndnode control',
       'Fuel Cycle': 'dndnode fuel-cycle'
     };
diff --git a/src/nodeConfig.js b/src/nodeConfig.js
index 4f286695..9089cc76 100644
--- a/src/nodeConfig.js
+++ b/src/nodeConfig.js
@@ -22,7 +22,15 @@ export const nodeTypes = {
   constant: SourceNode,
   source: SourceNode,
   stepsource: StepSourceNode,
+  trianglewavesource: SourceNode,
+  sinusoidalsource: SourceNode,
+  gaussianpulsesource: SourceNode,
+  sinusoidalphasenoisesource: SourceNode,
+  chirpphasenoisesource: SourceNode,
+  chirpsource: SourceNode,
   pulsesource: SourceNode,
+  clocksource: SourceNode,
+  squarewavesource: SourceNode,
   amplifier: AmplifierNode,
   amplifier_reverse: AmplifierNodeReverse,
   integrator: IntegratorNode,
@@ -33,6 +41,7 @@ export const nodeTypes = {
   function2to2: createFunctionNode(2, 2), // FunctionNode with 2 inputs and 2 outputs
   rng: SourceNode,
   pid: DefaultNode,
+  antiwinduppid: DefaultNode,
   splitter2: Splitter2Node,
   splitter3: Splitter3Node,
   wall: WallNode,
@@ -40,13 +49,21 @@ export const nodeTypes = {
   white_noise: SourceNode,
   pink_noise: SourceNode,
   spectrum: ScopeNode,
-  differentiator: DefaultNode
+  differentiator: DefaultNode,
+  samplehold: DefaultNode,
+  comparator: DefaultNode,
+  allpassfilter: DefaultNode,
+  butterworthlowpass: DefaultNode,
+  butterworthhighpass: DefaultNode,
+  butterworthbandpass: DefaultNode,
+  butterworthbandstop: DefaultNode,
+  fir: DefaultNode
 };
 
 // Node categories for better organization
 export const nodeCategories = {
   'Sources': {
-    nodes: ['constant', 'stepsource', 'source', 'pulsesource', 'rng', 'white_noise', 'pink_noise'],
+    nodes: ['constant', 'stepsource', 'source', 'pulsesource', 'trianglewavesource', 'sinusoidalsource', 'gaussianpulsesource', 'sinusoidalphasenoisesource', 'chirpphasenoisesource', 'chirpsource', 'clocksource', 'squarewavesource', 'rng', 'white_noise', 'pink_noise'],
     description: 'Signal and data source nodes'
   },
   'Processing': {
@@ -58,13 +75,21 @@ export const nodeCategories = {
     description: 'Mathematical operation nodes'
   },
   'Control': {
-    nodes: ['pid'],
+    nodes: ['pid', 'antiwinduppid'],
     description: 'Control system nodes'
   },
+  'Filters': {
+    nodes: ['allpassfilter', 'butterworthlowpass', 'butterworthhighpass', 'butterworthbandpass', 'butterworthbandstop', 'fir'],
+    description: 'Filter and flow control nodes'
+  },
   'Fuel Cycle': {
     nodes: ['process', 'process_horizontal', 'bubbler', 'wall'],
     description: 'Fuel cycle specific nodes'
   },
+  'Others': {
+    nodes: ['samplehold', 'comparator'],
+    description: 'Miscellaneous nodes'
+  },
   'Output': {
     nodes: ['scope', 'spectrum'],
     description: 'Output and visualization nodes'
diff --git a/src/pathsim_utils.py b/src/pathsim_utils.py
index b98796e9..3c5ccfbd 100644
--- a/src/pathsim_utils.py
+++ b/src/pathsim_utils.py
@@ -21,6 +21,7 @@
     Differentiator,
     Schedule,
 )
+import pathsim.blocks
 from pathsim.blocks.noise import WhiteNoise, PinkNoise
 from .custom_pathsim_blocks import (
     Process,
@@ -43,6 +44,14 @@
     "constant": Constant,
     "source": Source,
     "stepsource": StepSource,
+    "trianglewavesource": pathsim.blocks.sources.TriangleWaveSource,
+    "sinusoidalsource": pathsim.blocks.sources.SinusoidalSource,
+    "gaussianpulsesource": pathsim.blocks.sources.GaussianPulseSource,
+    "sinusoidalphasenoisesource": pathsim.blocks.sources.SinusoidalPhaseNoiseSource,
+    "chirpphasenoisesource": pathsim.blocks.sources.ChirpPhaseNoiseSource,
+    "chirpsource": pathsim.blocks.sources.ChirpSource,
+    "clocksource": pathsim.blocks.sources.ClockSource,
+    "squarewavesource": pathsim.blocks.sources.SquareWaveSource,
     "pulsesource": PulseSource,
     "amplifier": Amplifier,
     "amplifier_reverse": Amplifier,
@@ -56,6 +65,7 @@
     "process_horizontal": Process,
     "rng": RNG,
     "pid": PID,
+    "antiwinduppid": pathsim.blocks.AntiWindupPID,
     "integrator": Integrator,
     "differentiator": Differentiator,
     "function": Function,
@@ -66,6 +76,14 @@
     "white_noise": WhiteNoise,
     "pink_noise": PinkNoise,
     "spectrum": Spectrum,
+    "samplehold": pathsim.blocks.SampleHold,
+    "comparator": pathsim.blocks.Comparator,
+    "allpassfilter": pathsim.blocks.AllpassFilter,
+    "butterworthlowpass": pathsim.blocks.ButterworthLowpassFilter,
+    "butterworthhighpass": pathsim.blocks.ButterworthHighpassFilter,
+    "butterworthbandpass": pathsim.blocks.ButterworthBandpassFilter,
+    "butterworthbandstop": pathsim.blocks.ButterworthBandstopFilter,
+    "fir": pathsim.blocks.FIR,
 }